diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_texture.c')
-rw-r--r-- | source/blender/gpu/intern/gpu_texture.c | 2186 |
1 files changed, 0 insertions, 2186 deletions
diff --git a/source/blender/gpu/intern/gpu_texture.c b/source/blender/gpu/intern/gpu_texture.c deleted file mode 100644 index 56e82b94fd2..00000000000 --- a/source/blender/gpu/intern/gpu_texture.c +++ /dev/null @@ -1,2186 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2005 Blender Foundation. - * All rights reserved. - */ - -/** \file - * \ingroup gpu - */ - -#include <string.h> - -#include "MEM_guardedalloc.h" - -#include "DNA_image_types.h" - -#include "BLI_blenlib.h" -#include "BLI_math_base.h" -#include "BLI_utildefines.h" - -#include "BKE_global.h" - -#include "GPU_batch.h" -#include "GPU_context.h" -#include "GPU_debug.h" -#include "GPU_draw.h" -#include "GPU_extensions.h" -#include "GPU_framebuffer.h" -#include "GPU_glew.h" -#include "GPU_platform.h" -#include "GPU_texture.h" - -#include "gpu_context_private.h" - -static struct GPUTextureGlobal { - /** Texture used in place of invalid textures (not loaded correctly, missing). */ - GPUTexture *invalid_tex_1D; - GPUTexture *invalid_tex_2D; - GPUTexture *invalid_tex_3D; - /** Sampler objects used to replace internal texture parameters. */ - GLuint samplers[GPU_SAMPLER_MAX]; -} GG = {NULL}; - -/* Maximum number of FBOs a texture can be attached to. */ -#define GPU_TEX_MAX_FBO_ATTACHED 12 - -typedef enum eGPUTextureFormatFlag { - GPU_FORMAT_DEPTH = (1 << 0), - GPU_FORMAT_STENCIL = (1 << 1), - GPU_FORMAT_INTEGER = (1 << 2), - GPU_FORMAT_FLOAT = (1 << 3), - - GPU_FORMAT_1D = (1 << 10), - GPU_FORMAT_2D = (1 << 11), - GPU_FORMAT_3D = (1 << 12), - GPU_FORMAT_CUBE = (1 << 13), - GPU_FORMAT_ARRAY = (1 << 14), -} eGPUTextureFormatFlag; - -/* GPUTexture */ -struct GPUTexture { - int w, h, d; /* width/height/depth */ - int orig_w, orig_h; /* width/height (of source data), optional. */ - int number; /* Texture unit to which this texture is bound. */ - int refcount; /* reference count */ - GLenum target; /* GL_TEXTURE_* */ - GLenum target_base; /* same as target, (but no multisample) - * use it for unbinding */ - GLuint bindcode; /* opengl identifier for texture */ - - eGPUTextureFormat format; - eGPUTextureFormatFlag format_flag; - eGPUSamplerState sampler_state; /* Internal Sampler state. */ - - int mipmaps; /* number of mipmaps */ - int components; /* number of color/alpha channels */ - int samples; /* number of samples for multisamples textures. 0 if not multisample target */ - - int fb_attachment[GPU_TEX_MAX_FBO_ATTACHED]; - GPUFrameBuffer *fb[GPU_TEX_MAX_FBO_ATTACHED]; - /* Legacy workaround for texture copy. */ - GLuint copy_fb; - GPUContext *copy_fb_ctx; -}; - -static uint gpu_get_bytesize(eGPUTextureFormat data_type); -static void gpu_texture_framebuffer_ensure(GPUTexture *tex); - -/* ------ Memory Management ------- */ -/* Records every texture allocation / free - * to estimate the Texture Pool Memory consumption */ -static uint memory_usage; - -static uint gpu_texture_memory_footprint_compute(GPUTexture *tex) -{ - uint memsize; - const uint bytesize = gpu_get_bytesize(tex->format); - const int samp = max_ii(tex->samples, 1); - switch (tex->target_base) { - case GL_TEXTURE_1D: - case GL_TEXTURE_BUFFER: - memsize = bytesize * tex->w * samp; - break; - case GL_TEXTURE_1D_ARRAY: - case GL_TEXTURE_2D: - memsize = bytesize * tex->w * tex->h * samp; - break; - case GL_TEXTURE_2D_ARRAY: - case GL_TEXTURE_3D: - memsize = bytesize * tex->w * tex->h * tex->d * samp; - break; - case GL_TEXTURE_CUBE_MAP: - memsize = bytesize * 6 * tex->w * tex->h * samp; - break; - case GL_TEXTURE_CUBE_MAP_ARRAY_ARB: - memsize = bytesize * 6 * tex->w * tex->h * tex->d * samp; - break; - default: - BLI_assert(0); - return 0; - } - if (tex->mipmaps != 0) { - /* Just to get an idea of the memory used here is computed - * as if the maximum number of mipmaps was generated. */ - memsize += memsize / 3; - } - - return memsize; -} - -static void gpu_texture_memory_footprint_add(GPUTexture *tex) -{ - memory_usage += gpu_texture_memory_footprint_compute(tex); -} - -static void gpu_texture_memory_footprint_remove(GPUTexture *tex) -{ - memory_usage -= gpu_texture_memory_footprint_compute(tex); -} - -uint GPU_texture_memory_usage_get(void) -{ - return memory_usage; -} - -/* -------------------------------- */ - -static const char *gl_enum_to_str(GLenum e) -{ -#define ENUM_TO_STRING(e) [GL_##e] = STRINGIFY_ARG(e) - static const char *enum_strings[] = { - ENUM_TO_STRING(TEXTURE_CUBE_MAP), - ENUM_TO_STRING(TEXTURE_CUBE_MAP_ARRAY), - ENUM_TO_STRING(TEXTURE_2D), - ENUM_TO_STRING(TEXTURE_2D_ARRAY), - ENUM_TO_STRING(TEXTURE_1D), - ENUM_TO_STRING(TEXTURE_1D_ARRAY), - ENUM_TO_STRING(TEXTURE_3D), - ENUM_TO_STRING(TEXTURE_2D_MULTISAMPLE), - ENUM_TO_STRING(RGBA32F), - ENUM_TO_STRING(RGBA16F), - ENUM_TO_STRING(RGBA16UI), - ENUM_TO_STRING(RGBA16I), - ENUM_TO_STRING(RGBA16), - ENUM_TO_STRING(RGBA8UI), - ENUM_TO_STRING(RGBA8I), - ENUM_TO_STRING(RGBA8), - ENUM_TO_STRING(RGB16F), - ENUM_TO_STRING(RG32F), - ENUM_TO_STRING(RG16F), - ENUM_TO_STRING(RG16UI), - ENUM_TO_STRING(RG16I), - ENUM_TO_STRING(RG16), - ENUM_TO_STRING(RG8UI), - ENUM_TO_STRING(RG8I), - ENUM_TO_STRING(RG8), - ENUM_TO_STRING(R8UI), - ENUM_TO_STRING(R8I), - ENUM_TO_STRING(R8), - ENUM_TO_STRING(R32F), - ENUM_TO_STRING(R32UI), - ENUM_TO_STRING(R32I), - ENUM_TO_STRING(R16F), - ENUM_TO_STRING(R16UI), - ENUM_TO_STRING(R16I), - ENUM_TO_STRING(R16), - ENUM_TO_STRING(R11F_G11F_B10F), - ENUM_TO_STRING(SRGB8_ALPHA8), - ENUM_TO_STRING(DEPTH24_STENCIL8), - ENUM_TO_STRING(DEPTH32F_STENCIL8), - ENUM_TO_STRING(DEPTH_COMPONENT32F), - ENUM_TO_STRING(DEPTH_COMPONENT24), - ENUM_TO_STRING(DEPTH_COMPONENT16), - }; -#undef ENUM_TO_STRING - - return enum_strings[e]; -} - -static int gpu_get_component_count(eGPUTextureFormat format) -{ - switch (format) { - case GPU_RGBA8: - case GPU_RGBA8UI: - case GPU_RGBA16F: - case GPU_RGBA16: - case GPU_RGBA32F: - case GPU_SRGB8_A8: - return 4; - case GPU_RGB16F: - case GPU_R11F_G11F_B10F: - return 3; - case GPU_RG8: - case GPU_RG16: - case GPU_RG16F: - case GPU_RG16I: - case GPU_RG16UI: - case GPU_RG32F: - return 2; - default: - return 1; - } -} - -static uint gpu_get_data_format_bytesize(int comp, eGPUDataFormat data_format) -{ - switch (data_format) { - case GPU_DATA_FLOAT: - return sizeof(float) * comp; - case GPU_DATA_INT: - case GPU_DATA_UNSIGNED_INT: - return sizeof(int) * comp; - case GPU_DATA_UNSIGNED_INT_24_8: - case GPU_DATA_10_11_11_REV: - return sizeof(int); - case GPU_DATA_UNSIGNED_BYTE: - return sizeof(char) * comp; - default: - BLI_assert(0); - return 0; - } -} - -/* Definitely not complete, edit according to the gl specification. */ -static void gpu_validate_data_format(eGPUTextureFormat tex_format, eGPUDataFormat data_format) -{ - (void)data_format; - - if (ELEM(tex_format, GPU_DEPTH_COMPONENT24, GPU_DEPTH_COMPONENT16, GPU_DEPTH_COMPONENT32F)) { - BLI_assert(data_format == GPU_DATA_FLOAT); - } - else if (ELEM(tex_format, GPU_DEPTH24_STENCIL8, GPU_DEPTH32F_STENCIL8)) { - BLI_assert(data_format == GPU_DATA_UNSIGNED_INT_24_8); - } - else { - /* Integer formats */ - if (ELEM(tex_format, GPU_RG16I, GPU_R16I, GPU_RG16UI, GPU_R16UI, GPU_R8UI, GPU_R32UI)) { - if (ELEM(tex_format, GPU_R8UI, GPU_R16UI, GPU_RG16UI, GPU_R32UI)) { - BLI_assert(data_format == GPU_DATA_UNSIGNED_INT); - } - else { - BLI_assert(data_format == GPU_DATA_INT); - } - } - /* Byte formats */ - else if (ELEM(tex_format, GPU_R8, GPU_RG8, GPU_RGBA8, GPU_RGBA8UI, GPU_SRGB8_A8)) { - BLI_assert(ELEM(data_format, GPU_DATA_UNSIGNED_BYTE, GPU_DATA_FLOAT)); - } - /* Special case */ - else if (ELEM(tex_format, GPU_R11F_G11F_B10F)) { - BLI_assert(ELEM(data_format, GPU_DATA_10_11_11_REV, GPU_DATA_FLOAT)); - } - /* Float formats */ - else { - BLI_assert(ELEM(data_format, GPU_DATA_FLOAT)); - } - } -} - -static eGPUDataFormat gpu_get_data_format_from_tex_format(eGPUTextureFormat tex_format) -{ - if (ELEM(tex_format, GPU_DEPTH_COMPONENT24, GPU_DEPTH_COMPONENT16, GPU_DEPTH_COMPONENT32F)) { - return GPU_DATA_FLOAT; - } - else if (ELEM(tex_format, GPU_DEPTH24_STENCIL8, GPU_DEPTH32F_STENCIL8)) { - return GPU_DATA_UNSIGNED_INT_24_8; - } - else { - /* Integer formats */ - if (ELEM(tex_format, GPU_RG16I, GPU_R16I, GPU_RG16UI, GPU_R8UI, GPU_R16UI, GPU_R32UI)) { - if (ELEM(tex_format, GPU_R8UI, GPU_R16UI, GPU_RG16UI, GPU_R32UI)) { - return GPU_DATA_UNSIGNED_INT; - } - else { - return GPU_DATA_INT; - } - } - /* Byte formats */ - else if (ELEM(tex_format, GPU_R8)) { - return GPU_DATA_UNSIGNED_BYTE; - } - /* Special case */ - else if (ELEM(tex_format, GPU_R11F_G11F_B10F)) { - return GPU_DATA_10_11_11_REV; - } - else { - return GPU_DATA_FLOAT; - } - } -} - -/* Definitely not complete, edit according to the gl specification. */ -static GLenum gpu_get_gl_dataformat(eGPUTextureFormat data_type, - eGPUTextureFormatFlag *format_flag) -{ - if (ELEM(data_type, GPU_DEPTH_COMPONENT24, GPU_DEPTH_COMPONENT16, GPU_DEPTH_COMPONENT32F)) { - *format_flag |= GPU_FORMAT_DEPTH; - return GL_DEPTH_COMPONENT; - } - else if (ELEM(data_type, GPU_DEPTH24_STENCIL8, GPU_DEPTH32F_STENCIL8)) { - *format_flag |= GPU_FORMAT_DEPTH | GPU_FORMAT_STENCIL; - return GL_DEPTH_STENCIL; - } - else { - /* Integer formats */ - if (ELEM(data_type, GPU_R8UI, GPU_RG16I, GPU_R16I, GPU_RG16UI, GPU_R16UI, GPU_R32UI)) { - *format_flag |= GPU_FORMAT_INTEGER; - - switch (gpu_get_component_count(data_type)) { - case 1: - return GL_RED_INTEGER; - break; - case 2: - return GL_RG_INTEGER; - break; - case 3: - return GL_RGB_INTEGER; - break; - case 4: - return GL_RGBA_INTEGER; - break; - } - } - else if (ELEM(data_type, GPU_R8)) { - *format_flag |= GPU_FORMAT_FLOAT; - return GL_RED; - } - else { - *format_flag |= GPU_FORMAT_FLOAT; - - switch (gpu_get_component_count(data_type)) { - case 1: - return GL_RED; - break; - case 2: - return GL_RG; - break; - case 3: - return GL_RGB; - break; - case 4: - return GL_RGBA; - break; - } - } - } - - BLI_assert(0); - *format_flag |= GPU_FORMAT_FLOAT; - return GL_RGBA; -} - -static uint gpu_get_bytesize(eGPUTextureFormat data_type) -{ - switch (data_type) { - case GPU_RGBA32F: - return 32; - case GPU_RG32F: - case GPU_RGBA16F: - case GPU_RGBA16: - return 16; - case GPU_RGB16F: - return 12; - case GPU_DEPTH32F_STENCIL8: /* 32-bit depth, 8 bits stencil, and 24 unused bits. */ - return 8; - case GPU_RG16F: - case GPU_RG16I: - case GPU_RG16UI: - case GPU_RG16: - case GPU_DEPTH24_STENCIL8: - case GPU_DEPTH_COMPONENT32F: - case GPU_RGBA8UI: - case GPU_RGBA8: - case GPU_SRGB8_A8: - case GPU_R11F_G11F_B10F: - case GPU_R32F: - case GPU_R32UI: - case GPU_R32I: - return 4; - case GPU_DEPTH_COMPONENT24: - return 3; - case GPU_DEPTH_COMPONENT16: - case GPU_R16F: - case GPU_R16UI: - case GPU_R16I: - case GPU_RG8: - case GPU_R16: - return 2; - case GPU_R8: - case GPU_R8UI: - return 1; - default: - BLI_assert(!"Texture format incorrect or unsupported\n"); - return 0; - } -} - -static GLenum gpu_format_to_gl_internalformat(eGPUTextureFormat format) -{ - /* You can add any of the available type to this list - * For available types see GPU_texture.h */ - switch (format) { - /* Formats texture & renderbuffer */ - case GPU_RGBA8UI: - return GL_RGBA8UI; - case GPU_RGBA8I: - return GL_RGBA8I; - case GPU_RGBA8: - return GL_RGBA8; - case GPU_RGBA32UI: - return GL_RGBA32UI; - case GPU_RGBA32I: - return GL_RGBA32I; - case GPU_RGBA32F: - return GL_RGBA32F; - case GPU_RGBA16UI: - return GL_RGBA16UI; - case GPU_RGBA16I: - return GL_RGBA16I; - case GPU_RGBA16F: - return GL_RGBA16F; - case GPU_RGBA16: - return GL_RGBA16; - case GPU_RG8UI: - return GL_RG8UI; - case GPU_RG8I: - return GL_RG8I; - case GPU_RG8: - return GL_RG8; - case GPU_RG32UI: - return GL_RG32UI; - case GPU_RG32I: - return GL_RG32I; - case GPU_RG32F: - return GL_RG32F; - case GPU_RG16UI: - return GL_RG16UI; - case GPU_RG16I: - return GL_RG16I; - case GPU_RG16F: - return GL_RG16F; - case GPU_RG16: - return GL_RG16; - case GPU_R8UI: - return GL_R8UI; - case GPU_R8I: - return GL_R8I; - case GPU_R8: - return GL_R8; - case GPU_R32UI: - return GL_R32UI; - case GPU_R32I: - return GL_R32I; - case GPU_R32F: - return GL_R32F; - case GPU_R16UI: - return GL_R16UI; - case GPU_R16I: - return GL_R16I; - case GPU_R16F: - return GL_R16F; - case GPU_R16: - return GL_R16; - /* Special formats texture & renderbuffer */ - case GPU_R11F_G11F_B10F: - return GL_R11F_G11F_B10F; - case GPU_DEPTH32F_STENCIL8: - return GL_DEPTH32F_STENCIL8; - case GPU_DEPTH24_STENCIL8: - return GL_DEPTH24_STENCIL8; - case GPU_SRGB8_A8: - return GL_SRGB8_ALPHA8; - /* Texture only format */ - case GPU_RGB16F: - return GL_RGB16F; - /* Special formats texture only */ - /* ** Add Format here */ - /* Depth Formats */ - case GPU_DEPTH_COMPONENT32F: - return GL_DEPTH_COMPONENT32F; - case GPU_DEPTH_COMPONENT24: - return GL_DEPTH_COMPONENT24; - case GPU_DEPTH_COMPONENT16: - return GL_DEPTH_COMPONENT16; - default: - BLI_assert(!"Texture format incorrect or unsupported\n"); - return 0; - } -} - -static eGPUTextureFormat gl_internalformat_to_gpu_format(const GLint glformat) -{ - /* You can add any of the available type to this list - * For available types see GPU_texture.h */ - switch (glformat) { - /* Formats texture & renderbuffer */ - case GL_RGBA8UI: - return GPU_RGBA8UI; - case GL_RGBA8I: - return GPU_RGBA8I; - case GL_RGBA8: - return GPU_RGBA8; - case GL_RGBA32UI: - return GPU_RGBA32UI; - case GL_RGBA32I: - return GPU_RGBA32I; - case GL_RGBA32F: - return GPU_RGBA32F; - case GL_RGBA16UI: - return GPU_RGBA16UI; - case GL_RGBA16I: - return GPU_RGBA16I; - case GL_RGBA16F: - return GPU_RGBA16F; - case GL_RGBA16: - return GPU_RGBA16; - case GL_RG8UI: - return GPU_RG8UI; - case GL_RG8I: - return GPU_RG8I; - case GL_RG8: - return GPU_RG8; - case GL_RG32UI: - return GPU_RG32UI; - case GL_RG32I: - return GPU_RG32I; - case GL_RG32F: - return GPU_RG32F; - case GL_RG16UI: - return GPU_RG16UI; - case GL_RG16I: - return GPU_RG16I; - case GL_RG16F: - return GPU_RGBA32F; - case GL_RG16: - return GPU_RG16; - case GL_R8UI: - return GPU_R8UI; - case GL_R8I: - return GPU_R8I; - case GL_R8: - return GPU_R8; - case GL_R32UI: - return GPU_R32UI; - case GL_R32I: - return GPU_R32I; - case GL_R32F: - return GPU_R32F; - case GL_R16UI: - return GPU_R16UI; - case GL_R16I: - return GPU_R16I; - case GL_R16F: - return GPU_R16F; - case GL_R16: - return GPU_R16; - /* Special formats texture & renderbuffer */ - case GL_R11F_G11F_B10F: - return GPU_R11F_G11F_B10F; - case GL_DEPTH32F_STENCIL8: - return GPU_DEPTH32F_STENCIL8; - case GL_DEPTH24_STENCIL8: - return GPU_DEPTH24_STENCIL8; - case GL_SRGB8_ALPHA8: - return GPU_SRGB8_A8; - /* Texture only format */ - case GL_RGB16F: - return GPU_RGB16F; - /* Special formats texture only */ - /* ** Add Format here */ - /* Depth Formats */ - case GL_DEPTH_COMPONENT32F: - return GPU_DEPTH_COMPONENT32F; - case GL_DEPTH_COMPONENT24: - return GPU_DEPTH_COMPONENT24; - case GL_DEPTH_COMPONENT16: - return GPU_DEPTH_COMPONENT16; - default: - BLI_assert(!"Internal format incorrect or unsupported\n"); - } - return -1; -} - -static GLenum gpu_get_gl_datatype(eGPUDataFormat format) -{ - switch (format) { - case GPU_DATA_FLOAT: - return GL_FLOAT; - case GPU_DATA_INT: - return GL_INT; - case GPU_DATA_UNSIGNED_INT: - return GL_UNSIGNED_INT; - case GPU_DATA_UNSIGNED_BYTE: - return GL_UNSIGNED_BYTE; - case GPU_DATA_UNSIGNED_INT_24_8: - return GL_UNSIGNED_INT_24_8; - case GPU_DATA_10_11_11_REV: - return GL_UNSIGNED_INT_10F_11F_11F_REV; - default: - BLI_assert(!"Unhandled data format"); - return GL_FLOAT; - } -} - -static float *GPU_texture_rescale_3d( - GPUTexture *tex, int w, int h, int d, int channels, const float *fpixels) -{ - const uint xf = w / tex->w, yf = h / tex->h, zf = d / tex->d; - float *nfpixels = MEM_mallocN(channels * sizeof(float) * tex->w * tex->h * tex->d, - "GPUTexture Rescaled 3Dtex"); - - if (nfpixels) { - GPU_print_error_debug("You need to scale a 3D texture, feel the pain!"); - - for (uint k = 0; k < tex->d; k++) { - for (uint j = 0; j < tex->h; j++) { - for (uint i = 0; i < tex->w; i++) { - /* obviously doing nearest filtering here, - * it's going to be slow in any case, let's not make it worse */ - float xb = i * xf; - float yb = j * yf; - float zb = k * zf; - uint offset = k * (tex->w * tex->h) + i * tex->h + j; - uint offset_orig = (zb) * (w * h) + (xb)*h + (yb); - - if (channels == 4) { - nfpixels[offset * 4] = fpixels[offset_orig * 4]; - nfpixels[offset * 4 + 1] = fpixels[offset_orig * 4 + 1]; - nfpixels[offset * 4 + 2] = fpixels[offset_orig * 4 + 2]; - nfpixels[offset * 4 + 3] = fpixels[offset_orig * 4 + 3]; - } - else { - nfpixels[offset] = fpixels[offset_orig]; - } - } - } - } - } - - return nfpixels; -} - -static bool gpu_texture_check_capacity( - GPUTexture *tex, GLenum proxy, GLenum internalformat, GLenum data_format, GLenum data_type) -{ - if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_WIN, GPU_DRIVER_ANY) || - GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_MAC, GPU_DRIVER_OFFICIAL) || - GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OFFICIAL)) { - /* Some AMD drivers have a faulty `GL_PROXY_TEXTURE_..` check. - * (see T55888, T56185, T59351). - * Checking with `GL_PROXY_TEXTURE_..` doesn't prevent `Out Of Memory` issue, - * it just states that the OGL implementation can support the texture. - * So manually check the maximum size and maximum number of layers. - * Same thing happens on Nvidia/macOS 10.15 (T78175). */ - switch (proxy) { - case GL_PROXY_TEXTURE_2D_ARRAY: - if ((tex->d < 0) || (tex->d > GPU_max_texture_layers())) { - return false; - } - break; - - case GL_PROXY_TEXTURE_1D_ARRAY: - if ((tex->h < 0) || (tex->h > GPU_max_texture_layers())) { - return false; - } - break; - } - - switch (proxy) { - case GL_PROXY_TEXTURE_3D: - if ((tex->d < 0) || (tex->d > GPU_max_texture_size())) { - return false; - } - ATTR_FALLTHROUGH; - - case GL_PROXY_TEXTURE_2D: - case GL_PROXY_TEXTURE_2D_ARRAY: - if ((tex->h < 0) || (tex->h > GPU_max_texture_size())) { - return false; - } - ATTR_FALLTHROUGH; - - case GL_PROXY_TEXTURE_1D: - case GL_PROXY_TEXTURE_1D_ARRAY: - if ((tex->w < 0) || (tex->w > GPU_max_texture_size())) { - return false; - } - ATTR_FALLTHROUGH; - default: - break; - } - - return true; - } - else { - switch (proxy) { - case GL_PROXY_TEXTURE_1D: - glTexImage1D(proxy, 0, internalformat, tex->w, 0, data_format, data_type, NULL); - break; - case GL_PROXY_TEXTURE_1D_ARRAY: - case GL_PROXY_TEXTURE_2D: - glTexImage2D(proxy, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, NULL); - break; - case GL_PROXY_TEXTURE_2D_ARRAY: - case GL_PROXY_TEXTURE_3D: - glTexImage3D( - proxy, 0, internalformat, tex->w, tex->h, tex->d, 0, data_format, data_type, NULL); - break; - } - int width = 0; - glGetTexLevelParameteriv(proxy, 0, GL_TEXTURE_WIDTH, &width); - - return (width > 0); - } -} - -/* This tries to allocate video memory for a given texture - * If alloc fails, lower the resolution until it fits. */ -static bool gpu_texture_try_alloc(GPUTexture *tex, - GLenum proxy, - GLenum internalformat, - GLenum data_format, - GLenum data_type, - int channels, - bool try_rescale, - const float *fpixels, - float **rescaled_fpixels) -{ - bool ret; - ret = gpu_texture_check_capacity(tex, proxy, internalformat, data_format, data_type); - - if (!ret && try_rescale) { - BLI_assert( - !ELEM(proxy, GL_PROXY_TEXTURE_1D_ARRAY, GL_PROXY_TEXTURE_2D_ARRAY)); // not implemented - - const int w = tex->w, h = tex->h, d = tex->d; - - /* Find largest texture possible */ - do { - tex->w /= 2; - tex->h /= 2; - tex->d /= 2; - - /* really unlikely to happen but keep this just in case */ - if (tex->w == 0) { - break; - } - if (tex->h == 0 && proxy != GL_PROXY_TEXTURE_1D) { - break; - } - if (tex->d == 0 && proxy == GL_PROXY_TEXTURE_3D) { - break; - } - - ret = gpu_texture_check_capacity(tex, proxy, internalformat, data_format, data_type); - } while (ret == false); - - /* Rescale */ - if (ret) { - switch (proxy) { - case GL_PROXY_TEXTURE_1D: - case GL_PROXY_TEXTURE_2D: - /* Do nothing for now */ - return false; - case GL_PROXY_TEXTURE_3D: - BLI_assert(data_type == GL_FLOAT); - *rescaled_fpixels = GPU_texture_rescale_3d(tex, w, h, d, channels, fpixels); - return (bool)*rescaled_fpixels; - } - } - } - - return ret; -} - -GPUTexture *GPU_texture_create_nD(int w, - int h, - int d, - int n, - const void *pixels, - eGPUTextureFormat tex_format, - eGPUDataFormat gpu_data_format, - int samples, - const bool can_rescale, - char err_out[256]) -{ - if (samples) { - CLAMP_MAX(samples, GPU_max_color_texture_samples()); - } - - if ((tex_format == GPU_DEPTH24_STENCIL8) && GPU_depth_blitting_workaround()) { - /* MacOS + Radeon Pro fails to blit depth on GPU_DEPTH24_STENCIL8 - * but works on GPU_DEPTH32F_STENCIL8. */ - tex_format = GPU_DEPTH32F_STENCIL8; - } - - GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); - tex->w = w; - tex->h = h; - tex->d = d; - tex->samples = samples; - tex->refcount = 1; - tex->format = tex_format; - tex->components = gpu_get_component_count(tex_format); - tex->mipmaps = 0; - tex->format_flag = 0; - tex->number = -1; - - if (n == 2) { - if (d == 0) { - tex->target_base = tex->target = GL_TEXTURE_2D; - } - else { - tex->target_base = tex->target = GL_TEXTURE_2D_ARRAY; - tex->format_flag |= GPU_FORMAT_ARRAY; - } - } - else if (n == 1) { - if (h == 0) { - tex->target_base = tex->target = GL_TEXTURE_1D; - } - else { - tex->target_base = tex->target = GL_TEXTURE_1D_ARRAY; - tex->format_flag |= GPU_FORMAT_ARRAY; - } - } - else if (n == 3) { - tex->target_base = tex->target = GL_TEXTURE_3D; - } - else { - /* should never happen */ - MEM_freeN(tex); - return NULL; - } - - gpu_validate_data_format(tex_format, gpu_data_format); - - if (samples && n == 2 && d == 0) { - tex->target = GL_TEXTURE_2D_MULTISAMPLE; - } - - GLenum internalformat = gpu_format_to_gl_internalformat(tex_format); - GLenum data_format = gpu_get_gl_dataformat(tex_format, &tex->format_flag); - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - - /* Generate Texture object */ - tex->bindcode = GPU_tex_alloc(); - - if (!tex->bindcode) { - if (err_out) { - BLI_strncpy(err_out, "GPUTexture: texture create failed\n", 256); - } - else { - fprintf(stderr, "GPUTexture: texture create failed\n"); - } - GPU_texture_free(tex); - return NULL; - } - - glBindTexture(tex->target, tex->bindcode); - - /* Check if texture fit in VRAM */ - GLenum proxy = GL_PROXY_TEXTURE_2D; - - if (n == 2) { - if (d > 1) { - proxy = GL_PROXY_TEXTURE_2D_ARRAY; - } - } - else if (n == 1) { - if (h == 0) { - proxy = GL_PROXY_TEXTURE_1D; - } - else { - proxy = GL_PROXY_TEXTURE_1D_ARRAY; - } - } - else if (n == 3) { - proxy = GL_PROXY_TEXTURE_3D; - } - - float *rescaled_pixels = NULL; - bool valid = gpu_texture_try_alloc(tex, - proxy, - internalformat, - data_format, - data_type, - tex->components, - can_rescale, - pixels, - &rescaled_pixels); - - if (G.debug & G_DEBUG_GPU || !valid) { - printf("GPUTexture: create : %s, %s, w : %d, h : %d, d : %d, comp : %d, size : %.2f MiB\n", - gl_enum_to_str(tex->target), - gl_enum_to_str(internalformat), - w, - h, - d, - tex->components, - gpu_texture_memory_footprint_compute(tex) / 1048576.0f); - } - - if (!valid) { - if (err_out) { - BLI_strncpy(err_out, "GPUTexture: texture alloc failed\n", 256); - } - else { - fprintf(stderr, "GPUTexture: texture alloc failed. Likely not enough Video Memory.\n"); - fprintf(stderr, - "Current texture memory usage : %.2f MiB.\n", - gpu_texture_memory_footprint_compute(tex) / 1048576.0f); - } - GPU_texture_free(tex); - return NULL; - } - - gpu_texture_memory_footprint_add(tex); - - /* Upload Texture */ - const float *pix = (rescaled_pixels) ? rescaled_pixels : pixels; - - if (tex->target == GL_TEXTURE_2D || tex->target == GL_TEXTURE_2D_MULTISAMPLE || - tex->target == GL_TEXTURE_1D_ARRAY) { - if (samples) { - glTexImage2DMultisample(tex->target, samples, internalformat, tex->w, tex->h, true); - if (pix) { - glTexSubImage2D(tex->target, 0, 0, 0, tex->w, tex->h, data_format, data_type, pix); - } - } - else { - glTexImage2D(tex->target, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pix); - } - } - else if (tex->target == GL_TEXTURE_1D) { - glTexImage1D(tex->target, 0, internalformat, tex->w, 0, data_format, data_type, pix); - } - else { - glTexImage3D( - tex->target, 0, internalformat, tex->w, tex->h, tex->d, 0, data_format, data_type, pix); - } - - if (rescaled_pixels) { - MEM_freeN(rescaled_pixels); - } - - /* Texture Parameters */ - if (GPU_texture_stencil(tex) || /* Does not support filtering */ - GPU_texture_integer(tex) || /* Does not support filtering */ - GPU_texture_depth(tex)) { - tex->sampler_state = GPU_SAMPLER_DEFAULT & ~GPU_SAMPLER_FILTER; - } - else { - tex->sampler_state = GPU_SAMPLER_DEFAULT; - } - /* Avoid issue with incomplete textures. */ - glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - - glBindTexture(tex->target, 0); - - return tex; -} - -GPUTexture *GPU_texture_cube_create(int w, - int d, - const void *pixels, - eGPUTextureFormat tex_format, - eGPUDataFormat gpu_data_format, - char err_out[256]) -{ - GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); - tex->w = w; - tex->h = w; - tex->d = d; - tex->samples = 0; - tex->refcount = 1; - tex->format = tex_format; - tex->components = gpu_get_component_count(tex_format); - tex->mipmaps = 0; - tex->format_flag = GPU_FORMAT_CUBE; - tex->number = -1; - - if (d == 0) { - tex->target_base = tex->target = GL_TEXTURE_CUBE_MAP; - } - else { - tex->target_base = tex->target = GL_TEXTURE_CUBE_MAP_ARRAY_ARB; - tex->format_flag |= GPU_FORMAT_ARRAY; - - if (!GPU_arb_texture_cube_map_array_is_supported()) { - fprintf(stderr, "ERROR: Attempt to create a cubemap array without hardware support!\n"); - BLI_assert(0); - GPU_texture_free(tex); - return NULL; - } - - if (d > GPU_max_texture_layers() / 6) { - BLI_assert(0); - GPU_texture_free(tex); - return NULL; - } - } - - GLenum internalformat = gpu_format_to_gl_internalformat(tex_format); - GLenum data_format = gpu_get_gl_dataformat(tex_format, &tex->format_flag); - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - - /* Generate Texture object */ - tex->bindcode = GPU_tex_alloc(); - - if (!tex->bindcode) { - if (err_out) { - BLI_strncpy(err_out, "GPUTexture: texture create failed\n", 256); - } - else { - fprintf(stderr, "GPUTexture: texture create failed\n"); - } - GPU_texture_free(tex); - return NULL; - } - - if (G.debug & G_DEBUG_GPU) { - printf("GPUTexture: create : %s, %s, w : %d, h : %d, d : %d, comp : %d, size : %.2f MiB\n", - gl_enum_to_str(tex->target), - gl_enum_to_str(internalformat), - w, - w, - d, - tex->components, - gpu_texture_memory_footprint_compute(tex) / 1048576.0f); - } - - gpu_texture_memory_footprint_add(tex); - - glBindTexture(tex->target, tex->bindcode); - - /* Upload Texture */ - if (d == 0) { - const char *pixels_px, *pixels_py, *pixels_pz, *pixels_nx, *pixels_ny, *pixels_nz; - - if (pixels) { - size_t face_ofs = w * w * gpu_get_data_format_bytesize(tex->components, gpu_data_format); - pixels_px = (char *)pixels + 0 * face_ofs; - pixels_nx = (char *)pixels + 1 * face_ofs; - pixels_py = (char *)pixels + 2 * face_ofs; - pixels_ny = (char *)pixels + 3 * face_ofs; - pixels_pz = (char *)pixels + 4 * face_ofs; - pixels_nz = (char *)pixels + 5 * face_ofs; - } - else { - pixels_px = pixels_py = pixels_pz = pixels_nx = pixels_ny = pixels_nz = NULL; - } - - GLuint face = GL_TEXTURE_CUBE_MAP_POSITIVE_X; - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_px); - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_nx); - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_py); - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_ny); - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_pz); - glTexImage2D(face++, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, pixels_nz); - } - else { - glTexImage3D(tex->target, - 0, - internalformat, - tex->w, - tex->h, - tex->d * 6, - 0, - data_format, - data_type, - pixels); - } - - /* Texture Parameters */ - if (GPU_texture_stencil(tex) || /* Does not support filtering */ - GPU_texture_integer(tex) || /* Does not support filtering */ - GPU_texture_depth(tex)) { - tex->sampler_state = GPU_SAMPLER_DEFAULT & ~GPU_SAMPLER_FILTER; - } - else { - tex->sampler_state = GPU_SAMPLER_DEFAULT; - } - /* Avoid issue with incomplete textures. */ - glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - - glBindTexture(tex->target, 0); - - return tex; -} - -/* Special buffer textures. tex_format must be compatible with the buffer content. */ -GPUTexture *GPU_texture_create_buffer(eGPUTextureFormat tex_format, const GLuint buffer) -{ - GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); - tex->refcount = 1; - tex->format = tex_format; - tex->components = gpu_get_component_count(tex_format); - tex->format_flag = 0; - tex->target_base = tex->target = GL_TEXTURE_BUFFER; - tex->mipmaps = 0; - tex->number = -1; - - GLenum internalformat = gpu_format_to_gl_internalformat(tex_format); - - gpu_get_gl_dataformat(tex_format, &tex->format_flag); - - if (!(ELEM(tex_format, GPU_R8, GPU_R16) || ELEM(tex_format, GPU_R16F, GPU_R32F) || - ELEM(tex_format, GPU_R8I, GPU_R16I, GPU_R32I) || - ELEM(tex_format, GPU_R8UI, GPU_R16UI, GPU_R32UI) || ELEM(tex_format, GPU_RG8, GPU_RG16) || - ELEM(tex_format, GPU_RG16F, GPU_RG32F) || - ELEM(tex_format, GPU_RG8I, GPU_RG16I, GPU_RG32I) || - ELEM(tex_format, GPU_RG8UI, GPU_RG16UI, GPU_RG32UI) || - /* Not available until gl 4.0 */ - // ELEM(tex_format, GPU_RGB32F, GPU_RGB32I, GPU_RGB32UI) || - ELEM(tex_format, GPU_RGBA8, GPU_RGBA16) || ELEM(tex_format, GPU_RGBA16F, GPU_RGBA32F) || - ELEM(tex_format, GPU_RGBA8I, GPU_RGBA16I, GPU_RGBA32I) || - ELEM(tex_format, GPU_RGBA8UI, GPU_RGBA16UI, GPU_RGBA32UI))) { - fprintf(stderr, "GPUTexture: invalid format for texture buffer\n"); - GPU_texture_free(tex); - return NULL; - } - - /* Generate Texture object */ - tex->bindcode = GPU_tex_alloc(); - - if (!tex->bindcode) { - fprintf(stderr, "GPUTexture: texture create failed\n"); - GPU_texture_free(tex); - BLI_assert( - 0 && "glGenTextures failed: Are you sure a valid OGL context is active on this thread?\n"); - return NULL; - } - - glBindTexture(tex->target, tex->bindcode); - glTexBuffer(tex->target, internalformat, buffer); - glGetTexLevelParameteriv(tex->target, 0, GL_TEXTURE_WIDTH, &tex->w); - glBindTexture(tex->target, 0); - - gpu_texture_memory_footprint_add(tex); - - return tex; -} - -GPUTexture *GPU_texture_from_bindcode(int textarget, int bindcode) -{ - GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); - tex->bindcode = bindcode; - tex->refcount = 1; - tex->target = textarget; - tex->target_base = textarget; - tex->samples = 0; - tex->sampler_state = GPU_SAMPLER_REPEAT | GPU_SAMPLER_ANISO; - if (GPU_get_mipmap()) { - tex->sampler_state |= (GPU_SAMPLER_MIPMAP | GPU_SAMPLER_FILTER); - } - tex->number = -1; - - if (!glIsTexture(tex->bindcode)) { - GPU_print_error_debug("Blender Texture Not Loaded"); - } - else { - GLint w, h, gl_format; - GLenum gettarget; - gettarget = (textarget == GL_TEXTURE_CUBE_MAP) ? GL_TEXTURE_CUBE_MAP_POSITIVE_X : textarget; - - glBindTexture(textarget, tex->bindcode); - glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_WIDTH, &w); - glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_HEIGHT, &h); - glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_INTERNAL_FORMAT, &gl_format); - tex->w = w; - tex->h = h; - tex->format = gl_internalformat_to_gpu_format(gl_format); - tex->components = gpu_get_component_count(tex->format); - glBindTexture(textarget, 0); - - /* Depending on how this bindcode was obtained, the memory used here could - * already have been computed. - * But that is not the case currently. */ - gpu_texture_memory_footprint_add(tex); - } - - return tex; -} - -GPUTexture *GPU_texture_create_1d(int w, - eGPUTextureFormat tex_format, - const float *pixels, - char err_out[256]) -{ - BLI_assert(w > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD(w, 0, 0, 1, pixels, tex_format, data_format, 0, false, err_out); -} - -GPUTexture *GPU_texture_create_1d_array( - int w, int h, eGPUTextureFormat tex_format, const float *pixels, char err_out[256]) -{ - BLI_assert(w > 0 && h > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD(w, h, 0, 1, pixels, tex_format, data_format, 0, false, err_out); -} - -GPUTexture *GPU_texture_create_2d( - int w, int h, eGPUTextureFormat tex_format, const float *pixels, char err_out[256]) -{ - BLI_assert(w > 0 && h > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD(w, h, 0, 2, pixels, tex_format, data_format, 0, false, err_out); -} - -GPUTexture *GPU_texture_create_2d_multisample(int w, - int h, - eGPUTextureFormat tex_format, - const float *pixels, - int samples, - char err_out[256]) -{ - BLI_assert(w > 0 && h > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD( - w, h, 0, 2, pixels, tex_format, data_format, samples, false, err_out); -} - -GPUTexture *GPU_texture_create_2d_array( - int w, int h, int d, eGPUTextureFormat tex_format, const float *pixels, char err_out[256]) -{ - BLI_assert(w > 0 && h > 0 && d > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD(w, h, d, 2, pixels, tex_format, data_format, 0, false, err_out); -} - -GPUTexture *GPU_texture_create_3d( - int w, int h, int d, eGPUTextureFormat tex_format, const float *pixels, char err_out[256]) -{ - BLI_assert(w > 0 && h > 0 && d > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_create_nD(w, h, d, 3, pixels, tex_format, data_format, 0, true, err_out); -} - -GPUTexture *GPU_texture_create_cube(int w, - eGPUTextureFormat tex_format, - const float *fpixels, - char err_out[256]) -{ - BLI_assert(w > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_cube_create(w, 0, fpixels, tex_format, data_format, err_out); -} - -GPUTexture *GPU_texture_create_cube_array( - int w, int d, eGPUTextureFormat tex_format, const float *fpixels, char err_out[256]) -{ - BLI_assert(w > 0 && d > 0); - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex_format); - return GPU_texture_cube_create(w, d, fpixels, tex_format, data_format, err_out); -} - -GPUTexture *GPU_texture_create_from_vertbuf(GPUVertBuf *vert) -{ - GPUVertFormat *format = &vert->format; - GPUVertAttr *attr = &format->attrs[0]; - - /* Detect incompatible cases (not supported by texture buffers) */ - BLI_assert(format->attr_len == 1 && vert->vbo_id != 0); - BLI_assert(attr->comp_len != 3); /* Not until OGL 4.0 */ - BLI_assert(attr->comp_type != GPU_COMP_I10); - BLI_assert(attr->fetch_mode != GPU_FETCH_INT_TO_FLOAT); - - uint byte_per_comp = attr->sz / attr->comp_len; - bool is_uint = ELEM(attr->comp_type, GPU_COMP_U8, GPU_COMP_U16, GPU_COMP_U32); - - /* Cannot fetch signed int or 32bit ints as normalized float. */ - if (attr->fetch_mode == GPU_FETCH_INT_TO_FLOAT_UNIT) { - BLI_assert(is_uint || byte_per_comp <= 2); - } - - eGPUTextureFormat data_type; - switch (attr->fetch_mode) { - case GPU_FETCH_FLOAT: - switch (attr->comp_len) { - case 1: - data_type = GPU_R32F; - break; - case 2: - data_type = GPU_RG32F; - break; - // case 3: data_type = GPU_RGB32F; break; /* Not supported */ - default: - data_type = GPU_RGBA32F; - break; - } - break; - case GPU_FETCH_INT: - switch (attr->comp_len) { - case 1: - switch (byte_per_comp) { - case 1: - data_type = (is_uint) ? GPU_R8UI : GPU_R8I; - break; - case 2: - data_type = (is_uint) ? GPU_R16UI : GPU_R16I; - break; - default: - data_type = (is_uint) ? GPU_R32UI : GPU_R32I; - break; - } - break; - case 2: - switch (byte_per_comp) { - case 1: - data_type = (is_uint) ? GPU_RG8UI : GPU_RG8I; - break; - case 2: - data_type = (is_uint) ? GPU_RG16UI : GPU_RG16I; - break; - default: - data_type = (is_uint) ? GPU_RG32UI : GPU_RG32I; - break; - } - break; - default: - switch (byte_per_comp) { - case 1: - data_type = (is_uint) ? GPU_RGBA8UI : GPU_RGBA8I; - break; - case 2: - data_type = (is_uint) ? GPU_RGBA16UI : GPU_RGBA16I; - break; - default: - data_type = (is_uint) ? GPU_RGBA32UI : GPU_RGBA32I; - break; - } - break; - } - break; - case GPU_FETCH_INT_TO_FLOAT_UNIT: - switch (attr->comp_len) { - case 1: - data_type = (byte_per_comp == 1) ? GPU_R8 : GPU_R16; - break; - case 2: - data_type = (byte_per_comp == 1) ? GPU_RG8 : GPU_RG16; - break; - default: - data_type = (byte_per_comp == 1) ? GPU_RGBA8 : GPU_RGBA16; - break; - } - break; - default: - BLI_assert(0); - return NULL; - } - - return GPU_texture_create_buffer(data_type, vert->vbo_id); -} - -void GPU_texture_add_mipmap(GPUTexture *tex, - eGPUDataFormat gpu_data_format, - int miplvl, - const void *pixels) -{ - BLI_assert((int)tex->format > -1); - BLI_assert(tex->components > -1); - BLI_assert(miplvl > tex->mipmaps); - - gpu_validate_data_format(tex->format, gpu_data_format); - - GLenum internalformat = gpu_format_to_gl_internalformat(tex->format); - GLenum data_format = gpu_get_gl_dataformat(tex->format, &tex->format_flag); - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - - glBindTexture(tex->target, tex->bindcode); - - int size[3]; - GPU_texture_get_mipmap_size(tex, miplvl, size); - - switch (tex->target) { - case GL_TEXTURE_1D: - glTexImage1D( - tex->target, miplvl, internalformat, size[0], 0, data_format, data_type, pixels); - break; - case GL_TEXTURE_2D: - case GL_TEXTURE_1D_ARRAY: - glTexImage2D(tex->target, - miplvl, - internalformat, - size[0], - size[1], - 0, - data_format, - data_type, - pixels); - break; - case GL_TEXTURE_3D: - case GL_TEXTURE_2D_ARRAY: - case GL_TEXTURE_CUBE_MAP_ARRAY_ARB: - glTexImage3D(tex->target, - miplvl, - internalformat, - size[0], - size[1], - size[2], - 0, - data_format, - data_type, - pixels); - break; - case GL_TEXTURE_2D_MULTISAMPLE: - /* Multisample textures cannot have mipmaps. */ - default: - BLI_assert(!"tex->target mode not supported"); - } - - tex->mipmaps = miplvl; - glTexParameteri(GPU_texture_target(tex), GL_TEXTURE_MAX_LEVEL, miplvl); - - glBindTexture(tex->target, 0); -} - -void GPU_texture_update_sub(GPUTexture *tex, - eGPUDataFormat gpu_data_format, - const void *pixels, - int offset_x, - int offset_y, - int offset_z, - int width, - int height, - int depth) -{ - BLI_assert((int)tex->format > -1); - BLI_assert(tex->components > -1); - - const uint bytesize = gpu_get_bytesize(tex->format); - GLenum data_format = gpu_get_gl_dataformat(tex->format, &tex->format_flag); - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - GLint alignment; - - /* The default pack size for textures is 4, which won't work for byte based textures */ - if (bytesize == 1) { - glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment); - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - } - - glBindTexture(tex->target, tex->bindcode); - switch (tex->target) { - case GL_TEXTURE_1D: - glTexSubImage1D(tex->target, 0, offset_x, width, data_format, data_type, pixels); - break; - case GL_TEXTURE_2D: - case GL_TEXTURE_2D_MULTISAMPLE: - case GL_TEXTURE_1D_ARRAY: - glTexSubImage2D( - tex->target, 0, offset_x, offset_y, width, height, data_format, data_type, pixels); - break; - case GL_TEXTURE_3D: - case GL_TEXTURE_2D_ARRAY: - glTexSubImage3D(tex->target, - 0, - offset_x, - offset_y, - offset_z, - width, - height, - depth, - data_format, - data_type, - pixels); - break; - default: - BLI_assert(!"tex->target mode not supported"); - } - - if (bytesize == 1) { - glPixelStorei(GL_UNPACK_ALIGNMENT, alignment); - } - - glBindTexture(tex->target, 0); -} - -void *GPU_texture_read(GPUTexture *tex, eGPUDataFormat gpu_data_format, int miplvl) -{ - BLI_assert(miplvl <= tex->mipmaps); - - int size[3] = {0, 0, 0}; - GPU_texture_get_mipmap_size(tex, miplvl, size); - - gpu_validate_data_format(tex->format, gpu_data_format); - - size_t samples_count = max_ii(1, tex->samples); - samples_count *= size[0]; - samples_count *= max_ii(1, size[1]); - samples_count *= max_ii(1, size[2]); - samples_count *= (GPU_texture_cube(tex) && !GPU_texture_array(tex)) ? 6 : 1; - - size_t buf_size = samples_count * gpu_get_data_format_bytesize(tex->components, gpu_data_format); - - /* AMD Pro driver have a bug that write 8 bytes past buffer size - * if the texture is big. (see T66573) */ - void *buf = MEM_mallocN(buf_size + 8, "GPU_texture_read"); - - GLenum data_format = gpu_get_gl_dataformat(tex->format, &tex->format_flag); - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - - glBindTexture(tex->target, tex->bindcode); - - if (GPU_texture_cube(tex) && !GPU_texture_array(tex)) { - int cube_face_size = buf_size / 6; - for (int i = 0; i < 6; i++) { - glGetTexImage(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, - miplvl, - data_format, - data_type, - ((char *)buf) + cube_face_size * i); - } - } - else { - glGetTexImage(tex->target, miplvl, data_format, data_type, buf); - } - - glBindTexture(tex->target, 0); - - return buf; -} - -void GPU_texture_clear(GPUTexture *tex, eGPUDataFormat gpu_data_format, const void *color) -{ - BLI_assert(color != NULL); /* Do not accept NULL as parameter. */ - gpu_validate_data_format(tex->format, gpu_data_format); - - if (false && GLEW_ARB_clear_texture) { - GLenum data_type = gpu_get_gl_datatype(gpu_data_format); - GLenum data_format = gpu_get_gl_dataformat(tex->format, &tex->format_flag); - glClearTexImage(tex->bindcode, 0, data_format, data_type, color); - - if (GPU_texture_stencil(tex) && GPU_texture_depth(tex)) { - /* TODO(clem) implement in fallback. */ - BLI_assert(0); - } - else if (GPU_texture_depth(tex)) { - switch (gpu_data_format) { - case GPU_DATA_FLOAT: - case GPU_DATA_UNSIGNED_INT: - break; - default: - /* TODO(clem) implement in fallback. */ - BLI_assert(0); - break; - } - } - else { - switch (gpu_data_format) { - case GPU_DATA_FLOAT: - case GPU_DATA_UNSIGNED_INT: - case GPU_DATA_UNSIGNED_BYTE: - break; - default: - /* TODO(clem) implement in fallback. */ - BLI_assert(0); - break; - } - } - } - else { - /* Fallback for older GL. */ - GPUFrameBuffer *prev_fb = GPU_framebuffer_active_get(); - - gpu_texture_framebuffer_ensure(tex); - /* This means that this function can only be used in one context for each texture. */ - BLI_assert(tex->copy_fb_ctx == GPU_context_active_get()); - - glBindFramebuffer(GL_FRAMEBUFFER, tex->copy_fb); - glViewport(0, 0, tex->w, tex->h); - - /* Watch: Write mask could prevent the clear. - * glClearTexImage does not change the state so we don't do it here either. */ - if (GPU_texture_stencil(tex) && GPU_texture_depth(tex)) { - /* TODO(clem) implement. */ - BLI_assert(0); - } - else if (GPU_texture_depth(tex)) { - float depth; - switch (gpu_data_format) { - case GPU_DATA_FLOAT: { - depth = *(float *)color; - break; - } - case GPU_DATA_UNSIGNED_INT: { - depth = *(uint *)color / (float)UINT_MAX; - break; - } - default: - BLI_assert(!"Unhandled data format"); - depth = 0.0f; - break; - } - glClearDepth(depth); - glClear(GL_DEPTH_BUFFER_BIT); - } - else { - float r, g, b, a; - switch (gpu_data_format) { - case GPU_DATA_FLOAT: { - float *f_color = (float *)color; - r = f_color[0]; - g = (tex->components > 1) ? f_color[1] : 0.0f; - b = (tex->components > 2) ? f_color[2] : 0.0f; - a = (tex->components > 3) ? f_color[3] : 0.0f; - break; - } - case GPU_DATA_UNSIGNED_INT: { - uint *u_color = (uint *)color; - r = u_color[0] / (float)UINT_MAX; - g = (tex->components > 1) ? u_color[1] / (float)UINT_MAX : 0.0f; - b = (tex->components > 2) ? u_color[2] / (float)UINT_MAX : 0.0f; - a = (tex->components > 3) ? u_color[3] / (float)UINT_MAX : 0.0f; - break; - } - case GPU_DATA_UNSIGNED_BYTE: { - uchar *ub_color = (uchar *)color; - r = ub_color[0] / 255.0f; - g = (tex->components > 1) ? ub_color[1] / 255.0f : 0.0f; - b = (tex->components > 2) ? ub_color[2] / 255.0f : 0.0f; - a = (tex->components > 3) ? ub_color[3] / 255.0f : 0.0f; - break; - } - default: - BLI_assert(!"Unhandled data format"); - r = g = b = a = 0.0f; - break; - } - glClearColor(r, g, b, a); - glClear(GL_COLOR_BUFFER_BIT); - } - - if (prev_fb) { - GPU_framebuffer_bind(prev_fb); - } - } -} - -void GPU_texture_update(GPUTexture *tex, eGPUDataFormat data_format, const void *pixels) -{ - GPU_texture_update_sub(tex, data_format, pixels, 0, 0, 0, tex->w, tex->h, tex->d); -} - -void GPU_invalid_tex_init(void) -{ - memory_usage = 0; - const float color[4] = {1.0f, 0.0f, 1.0f, 1.0f}; - GG.invalid_tex_1D = GPU_texture_create_1d(1, GPU_RGBA8, color, NULL); - GG.invalid_tex_2D = GPU_texture_create_2d(1, 1, GPU_RGBA8, color, NULL); - GG.invalid_tex_3D = GPU_texture_create_3d(1, 1, 1, GPU_RGBA8, color, NULL); -} - -void GPU_invalid_tex_bind(int mode) -{ - switch (mode) { - case GL_TEXTURE_1D: - glBindTexture(GL_TEXTURE_1D, GG.invalid_tex_1D->bindcode); - break; - case GL_TEXTURE_2D: - glBindTexture(GL_TEXTURE_2D, GG.invalid_tex_2D->bindcode); - break; - case GL_TEXTURE_3D: - glBindTexture(GL_TEXTURE_3D, GG.invalid_tex_3D->bindcode); - break; - } -} - -void GPU_invalid_tex_free(void) -{ - if (GG.invalid_tex_1D) { - GPU_texture_free(GG.invalid_tex_1D); - } - if (GG.invalid_tex_2D) { - GPU_texture_free(GG.invalid_tex_2D); - } - if (GG.invalid_tex_3D) { - GPU_texture_free(GG.invalid_tex_3D); - } -} - -/* set_number is to save the the texture unit for setting texture parameters. */ -void GPU_texture_bind_ex(GPUTexture *tex, eGPUSamplerState state, int unit, const bool set_number) -{ - BLI_assert(unit >= 0); - - if (unit >= GPU_max_textures()) { - fprintf(stderr, "Not enough texture slots.\n"); - return; - } - - if (G.debug & G_DEBUG) { - for (int i = 0; i < GPU_TEX_MAX_FBO_ATTACHED; i++) { - if (tex->fb[i] && GPU_framebuffer_bound(tex->fb[i])) { - fprintf(stderr, - "Feedback loop warning!: Attempting to bind " - "texture attached to current framebuffer!\n"); - BLI_assert(0); /* Should never happen! */ - break; - } - } - } - - if (set_number) { - tex->number = unit; - } - - glActiveTexture(GL_TEXTURE0 + unit); - - state = (state < GPU_SAMPLER_MAX) ? state : tex->sampler_state; - - if (tex->bindcode != 0) { - glBindTexture(tex->target, tex->bindcode); - glBindSampler(unit, GG.samplers[state]); - } - else { - GPU_invalid_tex_bind(tex->target_base); - glBindSampler(unit, 0); - } -} - -void GPU_texture_bind(GPUTexture *tex, int unit) -{ - GPU_texture_bind_ex(tex, GPU_SAMPLER_MAX, unit, true); -} - -void GPU_texture_unbind(GPUTexture *tex) -{ - if (tex->number == -1) { - return; - } - - glActiveTexture(GL_TEXTURE0 + tex->number); - glBindTexture(tex->target, 0); - glBindSampler(tex->number, 0); - tex->number = -1; -} - -void GPU_texture_unbind_all(void) -{ - if (GLEW_ARB_multi_bind) { - /* Some drivers crash because of the NULL array even if that's explicitly - * allowed by the spec... *sigh* (see T77549). */ - GLuint texs[32] = {0}; - int count = min_ii(32, GPU_max_textures()); - - glBindTextures(0, count, texs); - glBindSamplers(0, count, texs); - return; - } - - for (int i = 0; i < GPU_max_textures(); i++) { - glActiveTexture(GL_TEXTURE0 + i); - glBindTexture(GL_TEXTURE_2D, 0); - glBindTexture(GL_TEXTURE_2D_ARRAY, 0); - glBindTexture(GL_TEXTURE_1D, 0); - glBindTexture(GL_TEXTURE_1D_ARRAY, 0); - glBindTexture(GL_TEXTURE_3D, 0); - glBindTexture(GL_TEXTURE_CUBE_MAP, 0); - glBindTexture(GL_TEXTURE_BUFFER, 0); - if (GPU_arb_texture_cube_map_array_is_supported()) { - glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY_ARB, 0); - } - glBindSampler(i, 0); - } - - glActiveTexture(GL_TEXTURE0); -} - -#define WARN_NOT_BOUND(_tex) \ - { \ - if (_tex->number == -1) { \ - fprintf(stderr, "Warning : Trying to set parameter on a texture not bound.\n"); \ - BLI_assert(0); \ - return; \ - } \ - } \ - ((void)0) - -void GPU_texture_generate_mipmap(GPUTexture *tex) -{ - WARN_NOT_BOUND(tex); - - gpu_texture_memory_footprint_remove(tex); - int levels = 1 + floor(log2(max_ii(tex->w, tex->h))); - - glActiveTexture(GL_TEXTURE0 + tex->number); - - if (GPU_texture_depth(tex)) { - /* Some drivers have bugs when using glGenerateMipmap with depth textures (see T56789). - * In this case we just create a complete texture with mipmaps manually without - * down-sampling. You must initialize the texture levels using other methods like - * GPU_framebuffer_recursive_downsample(). */ - eGPUDataFormat data_format = gpu_get_data_format_from_tex_format(tex->format); - for (int i = 1; i < levels; i++) { - GPU_texture_add_mipmap(tex, data_format, i, NULL); - } - glBindTexture(tex->target, tex->bindcode); - } - else { - glGenerateMipmap(tex->target_base); - } - - tex->mipmaps = levels; - gpu_texture_memory_footprint_add(tex); -} - -static GLenum gpu_texture_default_attachment(GPUTexture *tex) -{ - return !GPU_texture_depth(tex) ? - GL_COLOR_ATTACHMENT0 : - (GPU_texture_stencil(tex) ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT); -} - -static void gpu_texture_framebuffer_ensure(GPUTexture *tex) -{ - if (tex->copy_fb == 0) { - tex->copy_fb = GPU_fbo_alloc(); - tex->copy_fb_ctx = GPU_context_active_get(); - - GLenum attachment = gpu_texture_default_attachment(tex); - - glBindFramebuffer(GL_FRAMEBUFFER, tex->copy_fb); - glFramebufferTexture(GL_FRAMEBUFFER, attachment, tex->bindcode, 0); - if (!GPU_texture_depth(tex)) { - glReadBuffer(GL_COLOR_ATTACHMENT0); - glDrawBuffer(GL_COLOR_ATTACHMENT0); - } - BLI_assert(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE); - glBindFramebuffer(GL_FRAMEBUFFER, 0); - } -} - -/* Copy a texture content to a similar texture. Only Mip 0 is copied. */ -void GPU_texture_copy(GPUTexture *dst, GPUTexture *src) -{ - BLI_assert(dst->target == src->target); - BLI_assert(dst->w == src->w); - BLI_assert(dst->h == src->h); - BLI_assert(!GPU_texture_cube(src) && !GPU_texture_cube(dst)); - /* TODO support array / 3D textures. */ - BLI_assert(dst->d == 0); - BLI_assert(dst->format == src->format); - - if (GLEW_ARB_copy_image && !GPU_texture_copy_workaround()) { - /* Opengl 4.3 */ - glCopyImageSubData(src->bindcode, - src->target, - 0, - 0, - 0, - 0, - dst->bindcode, - dst->target, - 0, - 0, - 0, - 0, - src->w, - src->h, - 1); - } - else { - /* Fallback for older GL. */ - GPUFrameBuffer *prev_fb = GPU_framebuffer_active_get(); - - gpu_texture_framebuffer_ensure(src); - gpu_texture_framebuffer_ensure(dst); - - /* This means that this function can only be used in one context for each texture. */ - BLI_assert(src->copy_fb_ctx == GPU_context_active_get()); - BLI_assert(dst->copy_fb_ctx == GPU_context_active_get()); - - glBindFramebuffer(GL_READ_FRAMEBUFFER, src->copy_fb); - glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->copy_fb); - - GLbitfield mask = 0; - if (GPU_texture_stencil(src)) { - mask |= GL_STENCIL_BUFFER_BIT; - } - if (GPU_texture_depth(src)) { - mask |= GL_DEPTH_BUFFER_BIT; - } - else { - mask |= GL_COLOR_BUFFER_BIT; - } - - glBlitFramebuffer(0, 0, src->w, src->h, 0, 0, src->w, src->h, mask, GL_NEAREST); - - if (prev_fb) { - GPU_framebuffer_bind(prev_fb); - } - } -} - -void GPU_texture_compare_mode(GPUTexture *tex, bool use_compare) -{ - /* Could become an assertion ? (fclem) */ - if (!GPU_texture_depth(tex)) { - return; - } - SET_FLAG_FROM_TEST(tex->sampler_state, use_compare, GPU_SAMPLER_COMPARE); -} - -void GPU_texture_filter_mode(GPUTexture *tex, bool use_filter) -{ - /* Stencil and integer format does not support filtering. */ - BLI_assert(!use_filter || !(GPU_texture_stencil(tex) || GPU_texture_integer(tex))); - - SET_FLAG_FROM_TEST(tex->sampler_state, use_filter, GPU_SAMPLER_FILTER); -} - -void GPU_texture_mipmap_mode(GPUTexture *tex, bool use_mipmap, bool use_filter) -{ - /* Stencil and integer format does not support filtering. */ - BLI_assert(!(use_filter || use_mipmap) || - !(GPU_texture_stencil(tex) || GPU_texture_integer(tex))); - - SET_FLAG_FROM_TEST(tex->sampler_state, use_mipmap, GPU_SAMPLER_MIPMAP); - SET_FLAG_FROM_TEST(tex->sampler_state, use_filter, GPU_SAMPLER_FILTER); -} - -void GPU_texture_wrap_mode(GPUTexture *tex, bool use_repeat, bool use_clamp) -{ - SET_FLAG_FROM_TEST(tex->sampler_state, use_repeat, GPU_SAMPLER_REPEAT); - SET_FLAG_FROM_TEST(tex->sampler_state, !use_clamp, GPU_SAMPLER_CLAMP_BORDER); -} - -void GPU_texture_swizzle_channel_auto(GPUTexture *tex, int channels) -{ - WARN_NOT_BOUND(tex); - - glActiveTexture(GL_TEXTURE0 + tex->number); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_R, GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_G, (channels >= 2) ? GL_GREEN : GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_B, (channels >= 3) ? GL_BLUE : GL_RED); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_SWIZZLE_A, (channels >= 4) ? GL_ALPHA : GL_ONE); -} - -void GPU_texture_free(GPUTexture *tex) -{ - tex->refcount--; - - if (tex->refcount < 0) { - fprintf(stderr, "GPUTexture: negative refcount\n"); - } - - if (tex->refcount == 0) { - for (int i = 0; i < GPU_TEX_MAX_FBO_ATTACHED; i++) { - if (tex->fb[i] != NULL) { - GPU_framebuffer_texture_detach_slot(tex->fb[i], tex, tex->fb_attachment[i]); - } - } - - if (tex->bindcode) { - GPU_tex_free(tex->bindcode); - } - if (tex->copy_fb) { - GPU_fbo_free(tex->copy_fb, tex->copy_fb_ctx); - } - - gpu_texture_memory_footprint_remove(tex); - - MEM_freeN(tex); - } -} - -void GPU_texture_ref(GPUTexture *tex) -{ - tex->refcount++; -} - -int GPU_texture_target(const GPUTexture *tex) -{ - return tex->target; -} - -int GPU_texture_width(const GPUTexture *tex) -{ - return tex->w; -} - -int GPU_texture_height(const GPUTexture *tex) -{ - return tex->h; -} - -int GPU_texture_orig_width(const GPUTexture *tex) -{ - return tex->orig_w; -} - -int GPU_texture_orig_height(const GPUTexture *tex) -{ - return tex->orig_h; -} - -void GPU_texture_orig_size_set(GPUTexture *tex, int w, int h) -{ - tex->orig_w = w; - tex->orig_h = h; -} - -int GPU_texture_layers(const GPUTexture *tex) -{ - return tex->d; -} - -eGPUTextureFormat GPU_texture_format(const GPUTexture *tex) -{ - return tex->format; -} - -int GPU_texture_samples(const GPUTexture *tex) -{ - return tex->samples; -} - -bool GPU_texture_array(const GPUTexture *tex) -{ - return (tex->format_flag & GPU_FORMAT_ARRAY) != 0; -} - -bool GPU_texture_depth(const GPUTexture *tex) -{ - return (tex->format_flag & GPU_FORMAT_DEPTH) != 0; -} - -bool GPU_texture_stencil(const GPUTexture *tex) -{ - return (tex->format_flag & GPU_FORMAT_STENCIL) != 0; -} - -bool GPU_texture_integer(const GPUTexture *tex) -{ - return (tex->format_flag & GPU_FORMAT_INTEGER) != 0; -} - -bool GPU_texture_cube(const GPUTexture *tex) -{ - return (tex->format_flag & GPU_FORMAT_CUBE) != 0; -} - -int GPU_texture_opengl_bindcode(const GPUTexture *tex) -{ - return tex->bindcode; -} - -void GPU_texture_attach_framebuffer(GPUTexture *tex, GPUFrameBuffer *fb, int attachment) -{ - for (int i = 0; i < GPU_TEX_MAX_FBO_ATTACHED; i++) { - if (tex->fb[i] == NULL) { - tex->fb[i] = fb; - tex->fb_attachment[i] = attachment; - return; - } - } - - BLI_assert(!"Error: Texture: Not enough Framebuffer slots"); -} - -/* Return previous attachment point */ -int GPU_texture_detach_framebuffer(GPUTexture *tex, GPUFrameBuffer *fb) -{ - for (int i = 0; i < GPU_TEX_MAX_FBO_ATTACHED; i++) { - if (tex->fb[i] == fb) { - tex->fb[i] = NULL; - return tex->fb_attachment[i]; - } - } - - BLI_assert(!"Error: Texture: Framebuffer is not attached"); - return 0; -} - -void GPU_texture_get_mipmap_size(GPUTexture *tex, int lvl, int *size) -{ - /* TODO assert if lvl is below the limit of 1px in each dimension. */ - int div = 1 << lvl; - size[0] = max_ii(1, tex->w / div); - - if (tex->target == GL_TEXTURE_1D_ARRAY) { - size[1] = tex->h; - } - else if (tex->h > 0) { - size[1] = max_ii(1, tex->h / div); - } - - if (GPU_texture_array(tex)) { - size[2] = tex->d; - /* Return the number of face layers. */ - if (GPU_texture_cube(tex)) { - size[2] *= 6; - } - } - else if (tex->d > 0) { - size[2] = max_ii(1, tex->d / div); - } -} - -/* -------------------------------------------------------------------- */ -/** \name GPU Sampler Objects - * - * Simple wrapper around opengl sampler objects. - * Override texture sampler state for one sampler unit only. - * \{ */ - -void GPU_samplers_init(void) -{ - glGenSamplers(GPU_SAMPLER_MAX, GG.samplers); - for (int i = 0; i < GPU_SAMPLER_MAX; i++) { - eGPUSamplerState state = i; - GLenum clamp_type = (state & GPU_SAMPLER_CLAMP_BORDER) ? GL_CLAMP_TO_BORDER : GL_CLAMP_TO_EDGE; - GLenum wrap_s = (state & GPU_SAMPLER_REPEAT_S) ? GL_REPEAT : clamp_type; - GLenum wrap_t = (state & GPU_SAMPLER_REPEAT_T) ? GL_REPEAT : clamp_type; - GLenum wrap_r = (state & GPU_SAMPLER_REPEAT_R) ? GL_REPEAT : clamp_type; - GLenum mag_filter = (state & GPU_SAMPLER_FILTER) ? GL_LINEAR : GL_NEAREST; - GLenum min_filter = (state & GPU_SAMPLER_FILTER) ? - ((state & GPU_SAMPLER_MIPMAP) ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR) : - ((state & GPU_SAMPLER_MIPMAP) ? GL_NEAREST_MIPMAP_LINEAR : GL_NEAREST); - GLenum compare_mode = (state & GPU_SAMPLER_COMPARE) ? GL_COMPARE_REF_TO_TEXTURE : GL_NONE; - float aniso_filter = ((state & GPU_SAMPLER_MIPMAP) && (state & GPU_SAMPLER_ANISO)) ? - GPU_get_anisotropic() : - 1.0f; - - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_WRAP_S, wrap_s); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_WRAP_T, wrap_t); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_WRAP_R, wrap_r); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_MIN_FILTER, min_filter); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_MAG_FILTER, mag_filter); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_COMPARE_MODE, compare_mode); - glSamplerParameteri(GG.samplers[i], GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); - if (GLEW_EXT_texture_filter_anisotropic) { - glSamplerParameterf(GG.samplers[i], GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso_filter); - } - - /** Other states are left to default: - * - GL_TEXTURE_BORDER_COLOR is {0, 0, 0, 0}. - * - GL_TEXTURE_MIN_LOD is -1000. - * - GL_TEXTURE_MAX_LOD is 1000. - * - GL_TEXTURE_LOD_BIAS is 0.0f. - **/ - } -} - -void GPU_samplers_free(void) -{ - glDeleteSamplers(GPU_SAMPLER_MAX, GG.samplers); -} - -/** \} */ |