diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_texture.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_texture.c | 1486 |
1 files changed, 1104 insertions, 382 deletions
diff --git a/source/blender/gpu/intern/gpu_texture.c b/source/blender/gpu/intern/gpu_texture.c index c201254ffae..4641bde74b9 100644 --- a/source/blender/gpu/intern/gpu_texture.c +++ b/source/blender/gpu/intern/gpu_texture.c @@ -32,380 +32,791 @@ #include "BLI_blenlib.h" #include "BLI_utildefines.h" #include "BLI_math_base.h" +#include "BLI_listbase.h" +#include "BLI_threads.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_framebuffer.h" #include "GPU_texture.h" +#include "gpu_context_private.h" + static struct GPUTextureGlobal { GPUTexture *invalid_tex_1D; /* texture used in place of invalid textures (not loaded correctly, missing) */ GPUTexture *invalid_tex_2D; GPUTexture *invalid_tex_3D; } GG = {NULL, NULL, NULL}; -/* GPUTexture */ +/* Maximum number of FBOs a texture can be attached to. */ +#define GPU_TEX_MAX_FBO_ATTACHED 10 +typedef enum GPUTextureFormatFlag { + 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), +} GPUTextureFormatFlag; + +/* GPUTexture */ struct GPUTexture { - int w, h; /* width/height */ + int w, h, d; /* width/height/depth */ int number; /* number for multitexture binding */ 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 */ - int fromblender; /* we got the texture from Blender */ - GPUFrameBuffer *fb; /* GPUFramebuffer this texture is attached to */ - int fb_attachment; /* slot the texture is attached to */ - int depth; /* is a depth texture? if 3D how deep? */ -}; + GPUTextureFormat format; + GPUTextureFormatFlag format_flag; -static unsigned char *GPU_texture_convert_pixels(int length, const float *fpixels) -{ - unsigned char *pixels, *p; - const float *fp = fpixels; - const int len = 4 * length; + uint bytesize; /* number of byte for one pixel */ + int components; /* number of color/alpha channels */ + int samples; /* number of samples for multisamples textures. 0 if not multisample target */ - p = pixels = MEM_callocN(sizeof(unsigned char) * len, "GPUTexturePixels"); + int fb_attachment[GPU_TEX_MAX_FBO_ATTACHED]; + GPUFrameBuffer *fb[GPU_TEX_MAX_FBO_ATTACHED]; +}; - for (int a = 0; a < len; a++, p++, fp++) - *p = unit_float_to_uchar_clamp((*fp)); +/* ------ Memory Management ------- */ +/* Records every texture allocation / free + * to estimate the Texture Pool Memory consumption */ +static uint memory_usage; - return pixels; +static uint gpu_texture_memory_footprint_compute(GPUTexture *tex) +{ + int samp = max_ii(tex->samples, 1); + switch (tex->target) { + case GL_TEXTURE_1D: + return tex->bytesize * tex->w * samp; + case GL_TEXTURE_1D_ARRAY: + case GL_TEXTURE_2D: + return tex->bytesize * tex->w * tex->h * samp; + case GL_TEXTURE_2D_ARRAY: + case GL_TEXTURE_3D: + return tex->bytesize * tex->w * tex->h * tex->d * samp; + case GL_TEXTURE_CUBE_MAP: + return tex->bytesize * 6 * tex->w * tex->h * samp; + case GL_TEXTURE_CUBE_MAP_ARRAY: + return tex->bytesize * 6 * tex->w * tex->h * tex->d * samp; + default: + return 0; + } } -static void gpu_glTexSubImageEmpty(GLenum target, GLenum format, int x, int y, int w, int h) +static void gpu_texture_memory_footprint_add(GPUTexture *tex) { - void *pixels = MEM_callocN(sizeof(char) * 4 * w * h, "GPUTextureEmptyPixels"); - - if (target == GL_TEXTURE_1D) - glTexSubImage1D(target, 0, x, w, format, GL_UNSIGNED_BYTE, pixels); - else - glTexSubImage2D(target, 0, x, y, w, h, format, GL_UNSIGNED_BYTE, pixels); + memory_usage += gpu_texture_memory_footprint_compute(tex); +} - MEM_freeN(pixels); +static void gpu_texture_memory_footprint_remove(GPUTexture *tex) +{ + memory_usage -= gpu_texture_memory_footprint_compute(tex); } -static GPUTexture *GPU_texture_create_nD( - int w, int h, int n, const float *fpixels, int depth, - GPUHDRType hdr_type, int components, int samples, - char err_out[256]) +uint GPU_texture_memory_usage_get(void) { - GLenum type, format, internalformat; - void *pixels = NULL; + return memory_usage; +} - if (samples) { - CLAMP_MAX(samples, GPU_max_color_texture_samples()); - } +/* -------------------------------- */ - GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); - tex->w = w; - tex->h = h; - tex->number = -1; - tex->refcount = 1; - tex->target = (n == 1) ? GL_TEXTURE_1D : (samples ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D); - tex->target_base = (n == 1) ? GL_TEXTURE_1D : GL_TEXTURE_2D; - tex->depth = depth; - tex->fb_attachment = -1; - - glGenTextures(1, &tex->bindcode); +static int gpu_get_component_count(GPUTextureFormat format) +{ + switch (format) { + case GPU_RGBA8: + case GPU_RGBA8UI: + case GPU_RGBA16F: + case GPU_RGBA16: + case GPU_RGBA32F: + 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; + } +} - if (!tex->bindcode) { - if (err_out) { - BLI_snprintf(err_out, 256, "GPUTexture: texture create failed: %d", - (int)glGetError()); +/* Definitely not complete, edit according to the gl specification. */ +static void gpu_validate_data_format(GPUTextureFormat tex_format, GPUDataFormat 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_R32UI)) { + if (ELEM(tex_format, 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)) { + 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 { - fprintf(stderr, "GPUTexture: texture create failed: %d\n", - (int)glGetError()); + BLI_assert(ELEM(data_format, GPU_DATA_FLOAT)); } - GPU_texture_free(tex); - return NULL; } +} - if (!GPU_full_non_power_of_two_support()) { - tex->w = power_of_2_max_i(tex->w); - tex->h = power_of_2_max_i(tex->h); +static GPUDataFormat gpu_get_data_format_from_tex_format(GPUTextureFormat tex_format) +{ + if (ELEM(tex_format, + GPU_DEPTH_COMPONENT24, + GPU_DEPTH_COMPONENT16, + GPU_DEPTH_COMPONENT32F)) + { + return GPU_DATA_FLOAT; } - - tex->number = 0; - glBindTexture(tex->target, tex->bindcode); - - if (depth) { - type = GL_UNSIGNED_BYTE; - format = GL_DEPTH_COMPONENT; - internalformat = GL_DEPTH_COMPONENT; + else if (ELEM(tex_format, + GPU_DEPTH24_STENCIL8, + GPU_DEPTH32F_STENCIL8)) + { + return GPU_DATA_UNSIGNED_INT_24_8; } else { - type = GL_FLOAT; - - if (components == 4) { - format = GL_RGBA; - switch (hdr_type) { - case GPU_HDR_NONE: - internalformat = GL_RGBA8; - break; - /* the following formats rely on ARB_texture_float or OpenGL 3.0 */ - case GPU_HDR_HALF_FLOAT: - internalformat = GL_RGBA16F_ARB; - break; - case GPU_HDR_FULL_FLOAT: - internalformat = GL_RGBA32F_ARB; - break; - default: - break; + /* Integer formats */ + if (ELEM(tex_format, GPU_RG16I, GPU_R16I, GPU_RG16UI, GPU_R16UI, GPU_R32UI)) { + if (ELEM(tex_format, GPU_R16UI, GPU_RG16UI, GPU_R32UI)) { + return GPU_DATA_UNSIGNED_INT; } - } - else if (components == 2) { - /* these formats rely on ARB_texture_rg or OpenGL 3.0 */ - format = GL_RG; - switch (hdr_type) { - case GPU_HDR_NONE: - internalformat = GL_RG8; - break; - case GPU_HDR_HALF_FLOAT: - internalformat = GL_RG16F; - break; - case GPU_HDR_FULL_FLOAT: - internalformat = GL_RG32F; - break; - default: - break; + else { + return GPU_DATA_INT; } } - - if (fpixels && hdr_type == GPU_HDR_NONE) { - type = GL_UNSIGNED_BYTE; - pixels = GPU_texture_convert_pixels(w * h, fpixels); + /* 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; } } +} - if (tex->target == GL_TEXTURE_1D) { - glTexImage1D(tex->target, 0, internalformat, tex->w, 0, format, type, NULL); - - if (fpixels) { - glTexSubImage1D(tex->target, 0, 0, w, format, type, - pixels ? pixels : fpixels); - - if (tex->w > w) { - gpu_glTexSubImageEmpty(tex->target, format, w, 0, tex->w - w, 1); - } - } +/* Definitely not complete, edit according to the gl specification. */ +static GLenum gpu_get_gl_dataformat(GPUTextureFormat data_type, GPUTextureFormatFlag *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 { - if (samples) { - glTexImage2DMultisample(tex->target, samples, internalformat, tex->w, tex->h, true); + /* Integer formats */ + if (ELEM(data_type, 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 { - glTexImage2D(tex->target, 0, internalformat, tex->w, tex->h, 0, - format, type, NULL); + else if (ELEM(data_type, GPU_R8)) { + *format_flag |= GPU_FORMAT_FLOAT; + return GL_RED; } + else { + *format_flag |= GPU_FORMAT_FLOAT; - if (fpixels) { - glTexSubImage2D(tex->target, 0, 0, 0, w, h, - format, type, pixels ? pixels : fpixels); - - if (tex->w > w) { - gpu_glTexSubImageEmpty(tex->target, format, w, 0, tex->w - w, tex->h); - } - if (tex->h > h) { - gpu_glTexSubImageEmpty(tex->target, format, 0, h, w, tex->h - h); + 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; } } } - if (pixels) - MEM_freeN(pixels); + BLI_assert(0); + *format_flag |= GPU_FORMAT_FLOAT; + return GL_RGBA; +} - if (depth) { - glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); - glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); - glTexParameteri(tex->target_base, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY); +static uint gpu_get_bytesize(GPUTextureFormat 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: + 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_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: + return 2; + case GPU_R8: + return 1; + default: + BLI_assert(!"Texture format incorrect or unsupported\n"); + return 0; } - else { - glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR); +} + +static GLenum gpu_get_gl_internalformat(GPUTextureFormat 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_RGBA32F: return GL_RGBA32F; + case GPU_RGBA16F: return GL_RGBA16F; + case GPU_RGBA16: return GL_RGBA16; + case GPU_RG32F: return GL_RG32F; + case GPU_RGB16F: return GL_RGB16F; + case GPU_RG16F: return GL_RG16F; + case GPU_RG16I: return GL_RG16I; + case GPU_RG16: return GL_RG16; + case GPU_RGBA8: return GL_RGBA8; + case GPU_RGBA8UI: return GL_RGBA8UI; + case GPU_R32F: return GL_R32F; + case GPU_R32UI: return GL_R32UI; + case GPU_R32I: return GL_R32I; + case GPU_R16F: return GL_R16F; + case GPU_R16I: return GL_R16I; + case GPU_R16UI: return GL_R16UI; + case GPU_RG8: return GL_RG8; + case GPU_RG16UI: return GL_RG16UI; + case GPU_R8: return GL_R8; + /* Special formats texture & renderbuffer */ + case GPU_R11F_G11F_B10F: return GL_R11F_G11F_B10F; + case GPU_DEPTH24_STENCIL8: return GL_DEPTH24_STENCIL8; + case GPU_DEPTH32F_STENCIL8: return GL_DEPTH32F_STENCIL8; + /* Texture only format */ + /* ** Add Format here **/ + /* 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; } +} - if (tex->target_base != GL_TEXTURE_1D) { - glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); +static GLenum gpu_get_gl_datatype(GPUDataFormat 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; } - else - glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); +} - return tex; +static float *GPU_texture_3D_rescale(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; } +/* 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) +{ + int r_width; -GPUTexture *GPU_texture_create_3D(int w, int h, int depth, int channels, const float *fpixels) + 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: + /* HACK: Some driver wrongly check GL_PROXY_TEXTURE_2D_ARRAY as a GL_PROXY_TEXTURE_3D + * checking all dimensions against GPU_max_texture_layers (see T55888). */ + return (tex->w > 0) && (tex->w <= GPU_max_texture_size()) && + (tex->h > 0) && (tex->h <= GPU_max_texture_size()) && + (tex->d > 0) && (tex->d <= GPU_max_texture_layers()); + case GL_PROXY_TEXTURE_3D: + glTexImage3D(proxy, 0, internalformat, tex->w, tex->h, tex->d, 0, data_format, data_type, NULL); + break; + } + + glGetTexLevelParameteriv(proxy, 0, GL_TEXTURE_WIDTH, &r_width); + + if (r_width == 0 && try_rescale) { + const int w = tex->w, h = tex->h, d = tex->d; + + /* Find largest texture possible */ + while (r_width == 0) { + 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; + + if (proxy == GL_PROXY_TEXTURE_1D) + glTexImage1D(proxy, 0, internalformat, tex->w, 0, data_format, data_type, NULL); + else if (proxy == GL_PROXY_TEXTURE_2D) + glTexImage2D(proxy, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, NULL); + else if (proxy == GL_PROXY_TEXTURE_3D) + glTexImage3D(proxy, 0, internalformat, tex->w, tex->h, tex->d, 0, data_format, data_type, NULL); + + glGetTexLevelParameteriv(GL_PROXY_TEXTURE_3D, 0, GL_TEXTURE_WIDTH, &r_width); + } + + /* Rescale */ + if (r_width > 0) { + 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_3D_rescale(tex, w, h, d, channels, fpixels); + return (bool)*rescaled_fpixels; + } + } + } + + return (r_width > 0); +} + +GPUTexture *GPU_texture_create_nD( + int w, int h, int d, int n, const void *pixels, + GPUTextureFormat tex_format, GPUDataFormat gpu_data_format, int samples, + const bool can_rescale, char err_out[256]) { - GLenum type, format, internalformat; - void *pixels = NULL; + 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->depth = depth; + tex->d = d; + tex->samples = samples; tex->number = -1; tex->refcount = 1; - tex->target = GL_TEXTURE_3D; - tex->target_base = GL_TEXTURE_3D; + tex->format = tex_format; + tex->components = gpu_get_component_count(tex_format); + tex->bytesize = gpu_get_bytesize(tex_format); + tex->format_flag = 0; + + if (n == 2) { + if (d == 0) + tex->target_base = tex->target = GL_TEXTURE_2D; + else + tex->target_base = tex->target = GL_TEXTURE_2D_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; + } + 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; - glGenTextures(1, &tex->bindcode); + GLenum internalformat = gpu_get_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); + + gpu_texture_memory_footprint_add(tex); + + /* Generate Texture object */ + tex->bindcode = GPU_tex_alloc(); if (!tex->bindcode) { - fprintf(stderr, "GPUTexture: texture create failed: %d\n", - (int)glGetError()); + if (err_out) + BLI_snprintf(err_out, 256, "GPUTexture: texture create failed\n"); + else + fprintf(stderr, "GPUTexture: texture create failed\n"); GPU_texture_free(tex); return NULL; } - tex->number = 0; glBindTexture(tex->target, tex->bindcode); - GPU_ASSERT_NO_GL_ERRORS("3D glBindTexture"); + /* Check if texture fit in VRAM */ + GLenum proxy = GL_PROXY_TEXTURE_2D; + + if (n == 2) { + if (d > 0) + 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 (!valid) { + if (err_out) + BLI_snprintf(err_out, 256, "GPUTexture: texture alloc failed"); + else + fprintf(stderr, "GPUTexture: texture alloc failed. Not enough Video Memory."); + GPU_texture_free(tex); + return NULL; + } - type = GL_FLOAT; - if (channels == 4) { - format = GL_RGBA; - internalformat = GL_RGBA8; + /* 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 { - format = GL_RED; - internalformat = GL_INTENSITY8; + glTexImage3D(tex->target, 0, internalformat, tex->w, tex->h, tex->d, 0, data_format, data_type, pix); } - /* 3D textures are quite heavy, test if it's possible to create them first */ - glTexImage3D(GL_PROXY_TEXTURE_3D, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, NULL); + if (rescaled_pixels) + MEM_freeN(rescaled_pixels); - bool rescale = false; - int r_width; + /* Texture Parameters */ + if (GPU_texture_stencil(tex) || /* Does not support filtering */ + GPU_texture_integer(tex) || /* Does not support filtering */ + GPU_texture_depth(tex)) + { + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + } + else { + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + } - glGetTexLevelParameteriv(GL_PROXY_TEXTURE_3D, 0, GL_TEXTURE_WIDTH, &r_width); + if (GPU_texture_depth(tex)) { + glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_MODE, GL_NONE); + glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + } - while (r_width == 0) { - rescale = true; - tex->w /= 2; - tex->h /= 2; - tex->depth /= 2; - glTexImage3D(GL_PROXY_TEXTURE_3D, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, NULL); - glGetTexLevelParameteriv(GL_PROXY_TEXTURE_3D, 0, GL_TEXTURE_WIDTH, &r_width); + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + if (n > 1) { + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + } + if (n > 2) { + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); } - /* really unlikely to happen but keep this just in case */ - tex->w = max_ii(tex->w, 1); - tex->h = max_ii(tex->h, 1); - tex->depth = max_ii(tex->depth, 1); + glBindTexture(tex->target, 0); -#if 0 - if (fpixels) - pixels = GPU_texture_convert_pixels(w*h*depth, fpixels); -#endif + return tex; +} - GPU_ASSERT_NO_GL_ERRORS("3D glTexImage3D"); +static GPUTexture *GPU_texture_cube_create( + int w, int d, + const float *fpixels_px, const float *fpixels_py, const float *fpixels_pz, + const float *fpixels_nx, const float *fpixels_ny, const float *fpixels_nz, + GPUTextureFormat tex_format, GPUDataFormat 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->number = -1; + tex->refcount = 1; + tex->format = tex_format; + tex->components = gpu_get_component_count(tex_format); + tex->bytesize = gpu_get_bytesize(tex_format); + tex->format_flag = GPU_FORMAT_CUBE; - /* hardcore stuff, 3D texture rescaling - warning, this is gonna hurt your performance a lot, but we need it - * for gooseberry */ - if (rescale && fpixels) { - /* FIXME: should these be floating point? */ - const unsigned int xf = w / tex->w, yf = h / tex->h, zf = depth / tex->depth; - float *tex3d = MEM_mallocN(channels * sizeof(float) * tex->w * tex->h * tex->depth, "tex3d"); + if (d == 0) { + tex->target_base = tex->target = GL_TEXTURE_CUBE_MAP; + } + else { + BLI_assert(false && "Cubemap array Not implemented yet"); + // tex->target_base = tex->target = GL_TEXTURE_CUBE_MAP_ARRAY; + } - GPU_print_error_debug("You need to scale a 3D texture, feel the pain!"); + GLenum internalformat = gpu_get_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); - for (unsigned k = 0; k < tex->depth; k++) { - for (unsigned j = 0; j < tex->h; j++) { - for (unsigned 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; - unsigned int offset = k * (tex->w * tex->h) + i * tex->h + j; - unsigned int offset_orig = (zb) * (w * h) + (xb) * h + (yb); + gpu_texture_memory_footprint_add(tex); - if (channels == 4) { - tex3d[offset * 4] = fpixels[offset_orig * 4]; - tex3d[offset * 4 + 1] = fpixels[offset_orig * 4 + 1]; - tex3d[offset * 4 + 2] = fpixels[offset_orig * 4 + 2]; - tex3d[offset * 4 + 3] = fpixels[offset_orig * 4 + 3]; - } - else - tex3d[offset] = fpixels[offset_orig]; - } - } - } + /* Generate Texture object */ + tex->bindcode = GPU_tex_alloc(); - glTexImage3D(tex->target, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, tex3d); + if (!tex->bindcode) { + if (err_out) + BLI_snprintf(err_out, 256, "GPUTexture: texture create failed\n"); + else + fprintf(stderr, "GPUTexture: texture create failed\n"); + GPU_texture_free(tex); + return NULL; + } - MEM_freeN(tex3d); + glBindTexture(tex->target, tex->bindcode); + + /* Upload Texture */ + glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_px); + glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_py); + glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_pz); + glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_nx); + glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_ny); + glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, internalformat, tex->w, tex->h, 0, data_format, data_type, fpixels_nz); + + /* Texture Parameters */ + if (GPU_texture_stencil(tex) || /* Does not support filtering */ + GPU_texture_integer(tex) || /* Does not support filtering */ + GPU_texture_depth(tex)) + { + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_NEAREST); } else { - if (fpixels) { - glTexImage3D(tex->target, 0, internalformat, tex->w, tex->h, tex->depth, 0, format, type, fpixels); - GPU_ASSERT_NO_GL_ERRORS("3D glTexSubImage3D"); - } + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR); } + if (GPU_texture_depth(tex)) { + glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_MODE, GL_NONE); + glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + } - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); - - if (pixels) - MEM_freeN(pixels); + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); - GPU_texture_unbind(tex); + glBindTexture(tex->target, 0); return tex; } -GPUTexture *GPU_texture_from_blender(Image *ima, ImageUser *iuser, int textarget, bool is_data, double time, int mipmap) +/* Special buffer textures. tex_format must be compatible with the buffer content. */ +GPUTexture *GPU_texture_create_buffer(GPUTextureFormat tex_format, const GLuint buffer) { - int gputt; - /* this binds a texture, so that's why to restore it to 0 */ - GLint bindcode = GPU_verify_image(ima, iuser, textarget, 0, 0, mipmap, is_data); - GPU_update_image_time(ima, time); + GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); + tex->number = -1; + 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->bytesize = gpu_get_bytesize(tex_format); + + GLenum internalformat = gpu_get_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) || + //ELEM(tex_format, GPU_RGB32F, GPU_RGB32I, GPU_RGB32UI) || /* Not available until gl 4.0 */ + 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; + } - /* see GPUInput::textarget: it can take two values - GL_TEXTURE_2D and GL_TEXTURE_CUBE_MAP - * these values are correct for glDisable, so textarget can be safely used in - * GPU_texture_bind/GPU_texture_unbind through tex->target_base */ - if (textarget == GL_TEXTURE_2D) - gputt = TEXTARGET_TEXTURE_2D; - else - gputt = TEXTARGET_TEXTURE_CUBE_MAP; + /* Generate Texture object */ + tex->bindcode = GPU_tex_alloc(); - if (ima->gputexture[gputt]) { - ima->gputexture[gputt]->bindcode = bindcode; - glBindTexture(textarget, 0); - return ima->gputexture[gputt]; + 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); + glBindTexture(tex->target, 0); + + return tex; +} + +GPUTexture *GPU_texture_from_bindcode(int textarget, int bindcode) +{ + /* see GPUInput::textarget: it can take two values - GL_TEXTURE_2D and GL_TEXTURE_CUBE_MAP + * these values are correct for glDisable, so textarget can be safely used in + * GPU_texture_bind/GPU_texture_unbind through tex->target_base */ + /* (is any of this obsolete now that we don't glEnable/Disable textures?) */ GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture"); tex->bindcode = bindcode; tex->number = -1; tex->refcount = 1; tex->target = textarget; tex->target_base = textarget; - tex->fromblender = 1; - - ima->gputexture[gputt] = tex; + tex->format = -1; + tex->components = -1; + tex->samples = 0; if (!glIsTexture(tex->bindcode)) { - GPU_ASSERT_NO_GL_ERRORS("Blender Texture Not Loaded"); + GPU_print_error_debug("Blender Texture Not Loaded"); } else { - GLint w, h, border; + GLint w, h; GLenum gettarget; @@ -417,14 +828,11 @@ GPUTexture *GPU_texture_from_blender(Image *ima, ImageUser *iuser, int textarget glBindTexture(textarget, tex->bindcode); glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_WIDTH, &w); glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_HEIGHT, &h); - glGetTexLevelParameteriv(gettarget, 0, GL_TEXTURE_BORDER, &border); - - tex->w = w - border; - tex->h = h - border; + tex->w = w; + tex->h = h; + glBindTexture(textarget, 0); } - glBindTexture(textarget, 0); - return tex; } @@ -452,11 +860,13 @@ GPUTexture *GPU_texture_from_preview(PreviewImage *prv, int mipmap) tex->refcount = 1; tex->target = GL_TEXTURE_2D; tex->target_base = GL_TEXTURE_2D; + tex->format = -1; + tex->components = -1; prv->gputexture[0] = tex; if (!glIsTexture(tex->bindcode)) { - GPU_ASSERT_NO_GL_ERRORS("Blender Texture Not Loaded"); + GPU_print_error_debug("Blender Texture Not Loaded"); } else { GLint w, h; @@ -475,114 +885,292 @@ GPUTexture *GPU_texture_from_preview(PreviewImage *prv, int mipmap) } -GPUTexture *GPU_texture_create_1D(int w, const float *fpixels, char err_out[256]) +GPUTexture *GPU_texture_create_1D( + int w, GPUTextureFormat tex_format, const float *pixels, char err_out[256]) { - GPUTexture *tex = GPU_texture_create_nD(w, 1, 1, fpixels, 0, GPU_HDR_NONE, 4, 0, err_out); - - if (tex) - GPU_texture_unbind(tex); - - return tex; + GPUDataFormat 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_2D(int w, int h, const float *fpixels, GPUHDRType hdr, char err_out[256]) +GPUTexture *GPU_texture_create_1D_array( + int w, int h, GPUTextureFormat tex_format, const float *pixels, char err_out[256]) { - GPUTexture *tex = GPU_texture_create_nD(w, h, 2, fpixels, 0, hdr, 4, 0, err_out); - - if (tex) - GPU_texture_unbind(tex); + GPUDataFormat 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); +} - return tex; +GPUTexture *GPU_texture_create_2D( + int w, int h, GPUTextureFormat tex_format, const float *pixels, char err_out[256]) +{ + GPUDataFormat 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, const float *fpixels, GPUHDRType hdr, int samples, char err_out[256]) + int w, int h, GPUTextureFormat tex_format, const float *pixels, int samples, char err_out[256]) { - GPUTexture *tex = GPU_texture_create_nD(w, h, 2, fpixels, 0, hdr, 4, samples, err_out); - - if (tex) - GPU_texture_unbind(tex); + GPUDataFormat 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); +} - return tex; +GPUTexture *GPU_texture_create_2D_array( + int w, int h, int d, GPUTextureFormat tex_format, const float *pixels, char err_out[256]) +{ + GPUDataFormat 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_depth(int w, int h, char err_out[256]) +GPUTexture *GPU_texture_create_3D( + int w, int h, int d, GPUTextureFormat tex_format, const float *pixels, char err_out[256]) { - GPUTexture *tex = GPU_texture_create_nD(w, h, 2, NULL, 1, GPU_HDR_NONE, 1, 0, err_out); + GPUDataFormat 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); +} - if (tex) - GPU_texture_unbind(tex); +GPUTexture *GPU_texture_create_cube( + int w, GPUTextureFormat tex_format, const float *fpixels, char err_out[256]) +{ + const float *fpixels_px, *fpixels_py, *fpixels_pz, *fpixels_nx, *fpixels_ny, *fpixels_nz; + const int channels = gpu_get_component_count(tex_format); + + if (fpixels) { + int face_ofs = w * w * channels; + fpixels_px = fpixels + 0 * face_ofs; + fpixels_nx = fpixels + 1 * face_ofs; + fpixels_py = fpixels + 2 * face_ofs; + fpixels_ny = fpixels + 3 * face_ofs; + fpixels_pz = fpixels + 4 * face_ofs; + fpixels_nz = fpixels + 5 * face_ofs; + } + else { + fpixels_px = fpixels_py = fpixels_pz = fpixels_nx = fpixels_ny = fpixels_nz = NULL; + } - return tex; + return GPU_texture_cube_create(w, 0, fpixels_px, fpixels_py, fpixels_pz, fpixels_nx, fpixels_ny, fpixels_nz, + tex_format, GPU_DATA_FLOAT, err_out); } -GPUTexture *GPU_texture_create_depth_multisample(int w, int h, int samples, char err_out[256]) + +GPUTexture *GPU_texture_create_from_vertbuf(GPUVertBuf *vert) { - GPUTexture *tex = GPU_texture_create_nD(w, h, 2, NULL, 1, GPU_HDR_NONE, 1, samples, err_out); + GPUVertFormat *format = &vert->format; + GPUVertAttr *attr = &format->attribs[0]; - if (tex) - GPU_texture_unbind(tex); + /* 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); - return tex; + 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); + } + + GPUTextureFormat 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); } -/** - * A shadow map for VSM needs two components (depth and depth^2) - */ -GPUTexture *GPU_texture_create_vsm_shadow_map(int size, char err_out[256]) +void GPU_texture_add_mipmap( + GPUTexture *tex, GPUDataFormat gpu_data_format, int miplvl, const void *pixels) { - GPUTexture *tex = GPU_texture_create_nD(size, size, 2, NULL, 0, GPU_HDR_FULL_FLOAT, 2, 0, err_out); + BLI_assert((int)tex->format > -1); + BLI_assert(tex->components > -1); - if (tex) { - /* Now we tweak some of the settings */ - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + gpu_validate_data_format(tex->format, gpu_data_format); + + GLenum internalformat = gpu_get_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); - GPU_texture_unbind(tex); + 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: + 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"); } - return tex; + glTexParameteri(GPU_texture_target(tex), GL_TEXTURE_MAX_LEVEL, miplvl); + + glBindTexture(tex->target, 0); } -GPUTexture *GPU_texture_create_2D_procedural(int w, int h, const float *pixels, bool repeat, char err_out[256]) +void GPU_texture_update_sub( + GPUTexture *tex, GPUDataFormat gpu_data_format, const void *pixels, + int offset_x, int offset_y, int offset_z, int width, int height, int depth) { - GPUTexture *tex = GPU_texture_create_nD(w, h, 2, pixels, 0, GPU_HDR_HALF_FLOAT, 2, 0, err_out); + BLI_assert((int)tex->format > -1); + BLI_assert(tex->components > -1); - if (tex) { - /* Now we tweak some of the settings */ - if (repeat) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - } - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + GLenum data_format = gpu_get_gl_dataformat(tex->format, &tex->format_flag); + GLenum data_type = gpu_get_gl_datatype(gpu_data_format); + GLint alignment; - GPU_texture_unbind(tex); + /* The default pack size for textures is 4, which won't work for byte based textures */ + if (tex->bytesize == 1) { + glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); } - return tex; + 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 (tex->bytesize == 1) { + glPixelStorei(GL_UNPACK_ALIGNMENT, alignment); + } + + glBindTexture(tex->target, 0); } -GPUTexture *GPU_texture_create_1D_procedural(int w, const float *pixels, char err_out[256]) +void *GPU_texture_read(GPUTexture *tex, GPUDataFormat gpu_data_format, int miplvl) { - GPUTexture *tex = GPU_texture_create_nD(w, 0, 1, pixels, 0, GPU_HDR_HALF_FLOAT, 2, 0, err_out); + int size[3] = {0, 0, 0}; + GPU_texture_get_mipmap_size(tex, miplvl, size); - if (tex) { - /* Now we tweak some of the settings */ - glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + gpu_validate_data_format(tex->format, gpu_data_format); + + size_t buf_size = gpu_texture_memory_footprint_compute(tex); + 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)) ? 6 : 1; - GPU_texture_unbind(tex); + switch (gpu_data_format) { + case GPU_DATA_FLOAT: + buf_size = sizeof(float) * samples_count * tex->components; + break; + case GPU_DATA_INT: + case GPU_DATA_UNSIGNED_INT: + buf_size = sizeof(int) * samples_count * tex->components; + break; + case GPU_DATA_UNSIGNED_INT_24_8: + case GPU_DATA_10_11_11_REV: + buf_size = sizeof(int) * samples_count; + break; + case GPU_DATA_UNSIGNED_BYTE: + break; } - return tex; + void *buf = MEM_mallocN(buf_size, "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)) { + 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_update(GPUTexture *tex, GPUDataFormat 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, color, NULL); - GG.invalid_tex_2D = GPU_texture_create_2D(1, 1, color, GPU_HDR_NONE, NULL); - GG.invalid_tex_3D = GPU_texture_create_3D(1, 1, 1, 4, color); + 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) @@ -610,61 +1198,46 @@ void GPU_invalid_tex_free(void) GPU_texture_free(GG.invalid_tex_3D); } - void GPU_texture_bind(GPUTexture *tex, int number) { + BLI_assert(number >= 0); + if (number >= GPU_max_textures()) { fprintf(stderr, "Not enough texture slots.\n"); return; } if ((G.debug & G_DEBUG)) { - if (tex->fb && GPU_framebuffer_bound(tex->fb)) { - fprintf(stderr, "Feedback loop warning!: Attempting to bind texture attached to current framebuffer!\n"); + 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 (number < 0) - return; - - GPU_ASSERT_NO_GL_ERRORS("Pre Texture Bind"); + glActiveTexture(GL_TEXTURE0 + number); - GLenum arbnumber = (GLenum)((GLuint)GL_TEXTURE0 + number); - if (number != 0) glActiveTexture(arbnumber); - if (tex->bindcode != 0) { - glBindTexture(tex->target_base, tex->bindcode); - } + if (tex->bindcode != 0) + glBindTexture(tex->target, tex->bindcode); else GPU_invalid_tex_bind(tex->target_base); - glEnable(tex->target_base); - if (number != 0) glActiveTexture(GL_TEXTURE0); tex->number = number; - - GPU_ASSERT_NO_GL_ERRORS("Post Texture Bind"); } void GPU_texture_unbind(GPUTexture *tex) { - if (tex->number >= GPU_max_textures()) { - fprintf(stderr, "Not enough texture slots.\n"); - return; - } - if (tex->number == -1) return; - GPU_ASSERT_NO_GL_ERRORS("Pre Texture Unbind"); - - GLenum arbnumber = (GLenum)((GLuint)GL_TEXTURE0 + tex->number); - if (tex->number != 0) glActiveTexture(arbnumber); - glBindTexture(tex->target_base, 0); - glDisable(tex->target_base); - if (tex->number != 0) glActiveTexture(GL_TEXTURE0); + glActiveTexture(GL_TEXTURE0 + tex->number); + glBindTexture(tex->target, 0); tex->number = -1; - - GPU_ASSERT_NO_GL_ERRORS("Post Texture Unbind"); } int GPU_texture_bound_number(GPUTexture *tex) @@ -672,39 +1245,120 @@ int GPU_texture_bound_number(GPUTexture *tex) return tex->number; } -void GPU_texture_filter_mode(GPUTexture *tex, bool compare, bool use_filter) +#define WARN_NOT_BOUND(_tex) do { \ + if (_tex->number == -1) { \ + fprintf(stderr, "Warning : Trying to set parameter on a texture not bound.\n"); \ + BLI_assert(0); \ + return; \ + } \ +} while (0); + +void GPU_texture_generate_mipmap(GPUTexture *tex) { - if (tex->number >= GPU_max_textures()) { - fprintf(stderr, "Not enough texture slots.\n"); - return; + WARN_NOT_BOUND(tex); + + 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 downsampling. + * You must initialize the texture levels using other methods like GPU_framebuffer_recursive_downsample(). */ + int levels = 1 + floor(log2(max_ii(tex->w, tex->h))); + GPUDataFormat 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); } +} - if (tex->number == -1) +void GPU_texture_compare_mode(GPUTexture *tex, bool use_compare) +{ + WARN_NOT_BOUND(tex); + + /* Could become an assertion ? (fclem) */ + if (!GPU_texture_depth(tex)) return; - GPU_ASSERT_NO_GL_ERRORS("Pre Texture Unbind"); + GLenum mode = (use_compare) ? GL_COMPARE_REF_TO_TEXTURE : GL_NONE; - GLenum arbnumber = (GLenum)((GLuint)GL_TEXTURE0 + tex->number); - if (tex->number != 0) glActiveTexture(arbnumber); + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_MODE, mode); +} - if (tex->depth) { - if (compare) - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); - else - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_NONE); - } +void GPU_texture_filter_mode(GPUTexture *tex, bool use_filter) +{ + WARN_NOT_BOUND(tex); - if (use_filter) { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - } - else { - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + /* Stencil and integer format does not support filtering. */ + BLI_assert(!use_filter || !(GPU_texture_stencil(tex) || GPU_texture_integer(tex))); + + GLenum filter = (use_filter) ? GL_LINEAR : GL_NEAREST; + + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, filter); + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, filter); +} + +void GPU_texture_mipmap_mode(GPUTexture *tex, bool use_mipmap, bool use_filter) +{ + WARN_NOT_BOUND(tex); + + /* Stencil and integer format does not support filtering. */ + BLI_assert((!use_filter && !use_mipmap) || !(GPU_texture_stencil(tex) || GPU_texture_integer(tex))); + + GLenum filter = (use_filter) ? GL_LINEAR : GL_NEAREST; + GLenum mipmap = ( + (use_filter) ? + (use_mipmap) ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR : + (use_mipmap) ? GL_NEAREST_MIPMAP_LINEAR : GL_NEAREST); + + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, mipmap); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, filter); +} + +void GPU_texture_wrap_mode(GPUTexture *tex, bool use_repeat) +{ + WARN_NOT_BOUND(tex); + + GLenum repeat = (use_repeat) ? GL_REPEAT : GL_CLAMP_TO_EDGE; + + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, repeat); + if (tex->target_base != GL_TEXTURE_1D) + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_T, repeat); + if (tex->target_base == GL_TEXTURE_3D) + glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_R, repeat); +} + +static GLenum gpu_get_gl_filterfunction(GPUFilterFunction filter) +{ + switch (filter) { + case GPU_NEAREST: + return GL_NEAREST; + case GPU_LINEAR: + return GL_LINEAR; + default: + BLI_assert(!"Unhandled filter mode"); + return GL_NEAREST; } - if (tex->number != 0) glActiveTexture(GL_TEXTURE0); +} + +void GPU_texture_filters(GPUTexture *tex, GPUFilterFunction min_filter, GPUFilterFunction mag_filter) +{ + WARN_NOT_BOUND(tex); - GPU_ASSERT_NO_GL_ERRORS("Post Texture Unbind"); + /* Stencil and integer format does not support filtering. */ + BLI_assert(!(GPU_texture_stencil(tex) || GPU_texture_integer(tex))); + BLI_assert(mag_filter == GPU_NEAREST || mag_filter == GPU_LINEAR); + + glActiveTexture(GL_TEXTURE0 + tex->number); + glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, gpu_get_gl_filterfunction(min_filter)); + glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, gpu_get_gl_filterfunction(mag_filter)); } void GPU_texture_free(GPUTexture *tex) @@ -715,10 +1369,16 @@ void GPU_texture_free(GPUTexture *tex) fprintf(stderr, "GPUTexture: negative refcount\n"); if (tex->refcount == 0) { - if (tex->fb) - GPU_framebuffer_texture_detach(tex); - if (tex->bindcode && !tex->fromblender) - glDeleteTextures(1, &tex->bindcode); + 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); + + gpu_texture_memory_footprint_remove(tex); MEM_freeN(tex); } @@ -744,9 +1404,39 @@ int GPU_texture_height(const GPUTexture *tex) return tex->h; } -int GPU_texture_depth(const GPUTexture *tex) +int GPU_texture_layers(const GPUTexture *tex) +{ + return tex->d; +} + +GPUTextureFormat GPU_texture_format(const GPUTexture *tex) +{ + return tex->format; +} + +int GPU_texture_samples(const GPUTexture *tex) +{ + return tex->samples; +} + +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->depth; + return (tex->format_flag & GPU_FORMAT_CUBE) != 0; } int GPU_texture_opengl_bindcode(const GPUTexture *tex) @@ -754,18 +1444,50 @@ int GPU_texture_opengl_bindcode(const GPUTexture *tex) return tex->bindcode; } -GPUFrameBuffer *GPU_texture_framebuffer(GPUTexture *tex) +void GPU_texture_attach_framebuffer(GPUTexture *tex, GPUFrameBuffer *fb, int attachment) { - return tex->fb; + 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"); } -int GPU_texture_framebuffer_attachment(GPUTexture *tex) +/* Return previous attachment point */ +int GPU_texture_detach_framebuffer(GPUTexture *tex, GPUFrameBuffer *fb) { - return tex->fb_attachment; + 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_framebuffer_set(GPUTexture *tex, GPUFrameBuffer *fb, int attachment) +void GPU_texture_get_mipmap_size(GPUTexture *tex, int lvl, int *size) { - tex->fb = fb; - tex->fb_attachment = attachment; + /* 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 (tex->target == GL_TEXTURE_2D_ARRAY) { + size[2] = tex->d; + } + else if (tex->d > 0) { + size[2] = max_ii(1, tex->d / div); + } } |