diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_immediate_util.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_immediate_util.c | 206 |
1 files changed, 109 insertions, 97 deletions
diff --git a/source/blender/gpu/intern/gpu_immediate_util.c b/source/blender/gpu/intern/gpu_immediate_util.c index d18dc862ce7..37a423d41a0 100644 --- a/source/blender/gpu/intern/gpu_immediate_util.c +++ b/source/blender/gpu/intern/gpu_immediate_util.c @@ -143,17 +143,6 @@ void immRecti_complete(int x1, int y1, int x2, int y2, const float color[4]) } #endif -/** - * Pack color into 3 bytes - * - * This define converts a numerical value to the equivalent 24-bit - * color, while not being endian-sensitive. On little-endian, this - * is the same as doing a 'naive' indexing, on big-endian, it is not! - * - * \note BGR format (i.e. 0xBBGGRR)... - * - * \param x: color. - */ void imm_cpack(uint x) { immUniformColor3ub(((x)&0xFF), (((x) >> 8) & 0xFF), (((x) >> 16) & 0xFF)); @@ -163,64 +152,44 @@ static void imm_draw_circle(GPUPrimType prim_type, const uint shdr_pos, float x, float y, - float rad_x, - float rad_y, + float radius_x, + float radius_y, int nsegments) { immBegin(prim_type, nsegments); for (int i = 0; i < nsegments; i++) { const float angle = (float)(2 * M_PI) * ((float)i / (float)nsegments); - immVertex2f(shdr_pos, x + (rad_x * cosf(angle)), y + (rad_y * sinf(angle))); + immVertex2f(shdr_pos, x + (radius_x * cosf(angle)), y + (radius_y * sinf(angle))); } immEnd(); } -/** - * Draw a circle outline with the given \a radius. - * The circle is centered at \a x, \a y and drawn in the XY plane. - * - * \param shdr_pos: The vertex attribute number for position. - * \param x: Horizontal center. - * \param y: Vertical center. - * \param rad: The circle's radius. - * \param nsegments: The number of segments to use in drawing (more = smoother). - */ -void imm_draw_circle_wire_2d(uint shdr_pos, float x, float y, float rad, int nsegments) +void imm_draw_circle_wire_2d(uint shdr_pos, float x, float y, float radius, int nsegments) { - imm_draw_circle(GPU_PRIM_LINE_LOOP, shdr_pos, x, y, rad, rad, nsegments); + imm_draw_circle(GPU_PRIM_LINE_LOOP, shdr_pos, x, y, radius, radius, nsegments); } -/** - * Draw a filled circle with the given \a radius. - * The circle is centered at \a x, \a y and drawn in the XY plane. - * - * \param shdr_pos: The vertex attribute number for position. - * \param x: Horizontal center. - * \param y: Vertical center. - * \param rad: The circle's radius. - * \param nsegments: The number of segments to use in drawing (more = smoother). - */ -void imm_draw_circle_fill_2d(uint shdr_pos, float x, float y, float rad, int nsegments) +void imm_draw_circle_fill_2d(uint shdr_pos, float x, float y, float radius, int nsegments) { - imm_draw_circle(GPU_PRIM_TRI_FAN, shdr_pos, x, y, rad, rad, nsegments); + imm_draw_circle(GPU_PRIM_TRI_FAN, shdr_pos, x, y, radius, radius, nsegments); } void imm_draw_circle_wire_aspect_2d( - uint shdr_pos, float x, float y, float rad_x, float rad_y, int nsegments) + uint shdr_pos, float x, float y, float radius_x, float radius_y, int nsegments) { - imm_draw_circle(GPU_PRIM_LINE_LOOP, shdr_pos, x, y, rad_x, rad_y, nsegments); + imm_draw_circle(GPU_PRIM_LINE_LOOP, shdr_pos, x, y, radius_x, radius_y, nsegments); } void imm_draw_circle_fill_aspect_2d( - uint shdr_pos, float x, float y, float rad_x, float rad_y, int nsegments) + uint shdr_pos, float x, float y, float radius_x, float radius_y, int nsegments) { - imm_draw_circle(GPU_PRIM_TRI_FAN, shdr_pos, x, y, rad_x, rad_y, nsegments); + imm_draw_circle(GPU_PRIM_TRI_FAN, shdr_pos, x, y, radius_x, radius_y, nsegments); } static void imm_draw_circle_partial(GPUPrimType prim_type, uint pos, float x, float y, - float rad, + float radius, int nsegments, float start, float sweep) @@ -234,15 +203,15 @@ static void imm_draw_circle_partial(GPUPrimType prim_type, const float angle = interpf(angle_start, angle_end, ((float)i / (float)(nsegments - 1))); const float angle_sin = sinf(angle); const float angle_cos = cosf(angle); - immVertex2f(pos, x + rad * angle_cos, y + rad * angle_sin); + immVertex2f(pos, x + radius * angle_cos, y + radius * angle_sin); } immEnd(); } void imm_draw_circle_partial_wire_2d( - uint pos, float x, float y, float rad, int nsegments, float start, float sweep) + uint pos, float x, float y, float radius, int nsegments, float start, float sweep) { - imm_draw_circle_partial(GPU_PRIM_LINE_STRIP, pos, x, y, rad, nsegments, start, sweep); + imm_draw_circle_partial(GPU_PRIM_LINE_STRIP, pos, x, y, radius, nsegments, start, sweep); } static void imm_draw_disk_partial(GPUPrimType prim_type, @@ -274,21 +243,6 @@ static void imm_draw_disk_partial(GPUPrimType prim_type, immEnd(); } -/** - * Draw a filled arc with the given inner and outer radius. - * The circle is centered at \a x, \a y and drawn in the XY plane. - * - * \note Arguments are `gluPartialDisk` compatible. - * - * \param pos: The vertex attribute number for position. - * \param x: Horizontal center. - * \param y: Vertical center. - * \param rad_inner: The inner circle's radius. - * \param rad_outer: The outer circle's radius (can be zero). - * \param nsegments: The number of segments to use in drawing (more = smoother). - * \param start: Specifies the starting angle, in degrees, of the disk portion. - * \param sweep: Specifies the sweep angle, in degrees, of the disk portion. - */ void imm_draw_disk_partial_fill_2d(uint pos, float x, float y, @@ -303,40 +257,31 @@ void imm_draw_disk_partial_fill_2d(uint pos, } static void imm_draw_circle_3D( - GPUPrimType prim_type, uint pos, float x, float y, float rad, int nsegments) + GPUPrimType prim_type, uint pos, float x, float y, float radius, int nsegments) { immBegin(prim_type, nsegments); for (int i = 0; i < nsegments; i++) { float angle = (float)(2 * M_PI) * ((float)i / (float)nsegments); - immVertex3f(pos, x + rad * cosf(angle), y + rad * sinf(angle), 0.0f); + immVertex3f(pos, x + radius * cosf(angle), y + radius * sinf(angle), 0.0f); } immEnd(); } -void imm_draw_circle_wire_3d(uint pos, float x, float y, float rad, int nsegments) +void imm_draw_circle_wire_3d(uint pos, float x, float y, float radius, int nsegments) { - imm_draw_circle_3D(GPU_PRIM_LINE_LOOP, pos, x, y, rad, nsegments); + imm_draw_circle_3D(GPU_PRIM_LINE_LOOP, pos, x, y, radius, nsegments); } -void imm_draw_circle_dashed_3d(uint pos, float x, float y, float rad, int nsegments) +void imm_draw_circle_dashed_3d(uint pos, float x, float y, float radius, int nsegments) { - imm_draw_circle_3D(GPU_PRIM_LINES, pos, x, y, rad, nsegments / 2); + imm_draw_circle_3D(GPU_PRIM_LINES, pos, x, y, radius, nsegments / 2); } -void imm_draw_circle_fill_3d(uint pos, float x, float y, float rad, int nsegments) +void imm_draw_circle_fill_3d(uint pos, float x, float y, float radius, int nsegments) { - imm_draw_circle_3D(GPU_PRIM_TRI_FAN, pos, x, y, rad, nsegments); + imm_draw_circle_3D(GPU_PRIM_TRI_FAN, pos, x, y, radius, nsegments); } -/** - * Draw a lined box. - * - * \param pos: The vertex attribute number for position. - * \param x1: left. - * \param y1: bottom. - * \param x2: right. - * \param y2: top. - */ void imm_draw_box_wire_2d(uint pos, float x1, float y1, float x2, float y2) { immBegin(GPU_PRIM_LINE_LOOP, 4); @@ -358,9 +303,6 @@ void imm_draw_box_wire_3d(uint pos, float x1, float y1, float x2, float y2) immEnd(); } -/** - * Draw a standard checkerboard to indicate transparent backgrounds. - */ void imm_draw_box_checker_2d_ex(float x1, float y1, float x2, @@ -391,12 +333,12 @@ void imm_draw_box_checker_2d(float x1, float y1, float x2, float y2) imm_draw_box_checker_2d_ex(x1, y1, x2, y2, checker_primary, checker_secondary, checker_size); } -void imm_draw_cube_fill_3d(uint pos, const float co[3], const float aspect[3]) +void imm_draw_cube_fill_3d(uint pos, const float center[3], const float aspect[3]) { float coords[ARRAY_SIZE(cube_coords)][3]; for (int i = 0; i < ARRAY_SIZE(cube_coords); i++) { - madd_v3_v3v3v3(coords[i], co, cube_coords[i], aspect); + madd_v3_v3v3v3(coords[i], center, cube_coords[i], aspect); } immBegin(GPU_PRIM_TRIS, ARRAY_SIZE(cube_quad_index) * 3 * 2); @@ -412,12 +354,12 @@ void imm_draw_cube_fill_3d(uint pos, const float co[3], const float aspect[3]) immEnd(); } -void imm_draw_cube_wire_3d(uint pos, const float co[3], const float aspect[3]) +void imm_draw_cube_wire_3d(uint pos, const float center[3], const float aspect[3]) { float coords[ARRAY_SIZE(cube_coords)][3]; for (int i = 0; i < ARRAY_SIZE(cube_coords); i++) { - madd_v3_v3v3v3(coords[i], co, cube_coords[i], aspect); + madd_v3_v3v3v3(coords[i], center, cube_coords[i], aspect); } immBegin(GPU_PRIM_LINES, ARRAY_SIZE(cube_line_index) * 2); @@ -428,18 +370,36 @@ void imm_draw_cube_wire_3d(uint pos, const float co[3], const float aspect[3]) immEnd(); } -/** - * Draw a cylinder. Replacement for gluCylinder. - * _warning_ : Slow, better use it only if you no other choices. - * - * \param pos: The vertex attribute number for position. - * \param nor: The vertex attribute number for normal. - * \param base: Specifies the radius of the cylinder at z = 0. - * \param top: Specifies the radius of the cylinder at z = height. - * \param height: Specifies the height of the cylinder. - * \param slices: Specifies the number of subdivisions around the z axis. - * \param stacks: Specifies the number of subdivisions along the z axis. - */ +void imm_draw_cube_corners_3d(uint pos, + const float center[3], + const float aspect[3], + const float factor) +{ + float coords[ARRAY_SIZE(cube_coords)][3]; + + for (int i = 0; i < ARRAY_SIZE(cube_coords); i++) { + madd_v3_v3v3v3(coords[i], center, cube_coords[i], aspect); + } + + immBegin(GPU_PRIM_LINES, ARRAY_SIZE(cube_line_index) * 4); + for (int i = 0; i < ARRAY_SIZE(cube_line_index); i++) { + float vec[3], co[3]; + sub_v3_v3v3(vec, coords[cube_line_index[i][1]], coords[cube_line_index[i][0]]); + mul_v3_fl(vec, factor); + + copy_v3_v3(co, coords[cube_line_index[i][0]]); + immVertex3fv(pos, co); + add_v3_v3(co, vec); + immVertex3fv(pos, co); + + copy_v3_v3(co, coords[cube_line_index[i][1]]); + immVertex3fv(pos, co); + sub_v3_v3(co, vec); + immVertex3fv(pos, co); + } + immEnd(); +} + void imm_draw_cylinder_fill_normal_3d( uint pos, uint nor, float base, float top, float height, int slices, int stacks) { @@ -572,3 +532,55 @@ void imm_draw_cylinder_fill_3d( } immEnd(); } + +/* Circle Drawing - Tables for Optimized Drawing Speed */ +#define CIRCLE_RESOL 32 + +static void circball_array_fill(const float verts[CIRCLE_RESOL][3], + const float cent[3], + const float radius, + const float tmat[4][4]) +{ + /* 32 values of sin function (still same result!) */ + const float sinval[CIRCLE_RESOL] = { + 0.00000000, 0.20129852, 0.39435585, 0.57126821, 0.72479278, 0.84864425, 0.93775213, + 0.98846832, 0.99871650, 0.96807711, 0.89780453, 0.79077573, 0.65137248, 0.48530196, + 0.29936312, 0.10116832, -0.10116832, -0.29936312, -0.48530196, -0.65137248, -0.79077573, + -0.89780453, -0.96807711, -0.99871650, -0.98846832, -0.93775213, -0.84864425, -0.72479278, + -0.57126821, -0.39435585, -0.20129852, 0.00000000, + }; + + /* 32 values of cos function (still same result!) */ + const float cosval[CIRCLE_RESOL] = { + 1.00000000, 0.97952994, 0.91895781, 0.82076344, 0.68896691, 0.52896401, 0.34730525, + 0.15142777, -0.05064916, -0.25065253, -0.44039415, -0.61210598, -0.75875812, -0.87434661, + -0.95413925, -0.99486932, -0.99486932, -0.95413925, -0.87434661, -0.75875812, -0.61210598, + -0.44039415, -0.25065253, -0.05064916, 0.15142777, 0.34730525, 0.52896401, 0.68896691, + 0.82076344, 0.91895781, 0.97952994, 1.00000000, + }; + + float vx[3], vy[3]; + float *viter = (float *)verts; + + mul_v3_v3fl(vx, tmat[0], radius); + mul_v3_v3fl(vy, tmat[1], radius); + + for (uint a = 0; a < CIRCLE_RESOL; a++, viter += 3) { + viter[0] = cent[0] + sinval[a] * vx[0] + cosval[a] * vy[0]; + viter[1] = cent[1] + sinval[a] * vx[1] + cosval[a] * vy[1]; + viter[2] = cent[2] + sinval[a] * vx[2] + cosval[a] * vy[2]; + } +} + +void imm_drawcircball(const float cent[3], float radius, const float tmat[4][4], uint pos) +{ + float verts[CIRCLE_RESOL][3]; + + circball_array_fill(verts, cent, radius, tmat); + + immBegin(GPU_PRIM_LINE_LOOP, CIRCLE_RESOL); + for (int i = 0; i < CIRCLE_RESOL; i++) { + immVertex3fv(pos, verts[i]); + } + immEnd(); +} |