diff options
Diffstat (limited to 'src/gallium/auxiliary/vl')
| -rw-r--r-- | src/gallium/auxiliary/vl/Makefile | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/vl/SConscript | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_compositor.c | 139 | ||||
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_compositor.h | 2 | ||||
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_csc.c | 179 | ||||
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_csc.h | 26 |
6 files changed, 236 insertions, 112 deletions
diff --git a/src/gallium/auxiliary/vl/Makefile b/src/gallium/auxiliary/vl/Makefile index 71bfb937ad7..4314c1e8d69 100644 --- a/src/gallium/auxiliary/vl/Makefile +++ b/src/gallium/auxiliary/vl/Makefile @@ -7,6 +7,7 @@ C_SOURCES = \ vl_bitstream_parser.c \ vl_mpeg12_mc_renderer.c \ vl_compositor.c \ + vl_csc.c \ vl_shader_build.c include ../../Makefile.template diff --git a/src/gallium/auxiliary/vl/SConscript b/src/gallium/auxiliary/vl/SConscript index eb50940c359..aed69f5efed 100644 --- a/src/gallium/auxiliary/vl/SConscript +++ b/src/gallium/auxiliary/vl/SConscript @@ -6,6 +6,7 @@ vl = env.ConvenienceLibrary( 'vl_bitstream_parser.c', 'vl_mpeg12_mc_renderer.c', 'vl_compositor.c', + 'vl_csc.c', 'vl_shader_build.c', ]) diff --git a/src/gallium/auxiliary/vl/vl_compositor.c b/src/gallium/auxiliary/vl/vl_compositor.c index 6431da66110..5d3458afd27 100644 --- a/src/gallium/auxiliary/vl/vl_compositor.c +++ b/src/gallium/auxiliary/vl/vl_compositor.c @@ -5,6 +5,7 @@ #include <tgsi/tgsi_parse.h> #include <tgsi/tgsi_build.h> #include <util/u_memory.h> +#include "vl_csc.h" #include "vl_shader_build.h" struct vertex2f @@ -27,7 +28,6 @@ struct vertex_shader_consts struct fragment_shader_consts { - struct vertex4f bias; float matrix[16]; }; @@ -49,94 +49,6 @@ static const struct vertex2f surface_verts[4] = */ static const struct vertex2f *surface_texcoords = surface_verts; -/* - * Identity color conversion constants, for debugging - */ -static const struct fragment_shader_consts identity = -{ - { - 0.0f, 0.0f, 0.0f, 0.0f - }, - { - 1.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 1.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 1.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } -}; - -/* - * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: - * Y is in [16,235], Cb and Cr are in [16,240] - * R, G, and B are in [16,235] - */ -static const struct fragment_shader_consts bt_601 = -{ - { - 0.0f, 0.501960784f, 0.501960784f, 0.0f - }, - { - 1.0f, 0.0f, 1.371f, 0.0f, - 1.0f, -0.336f, -0.698f, 0.0f, - 1.0f, 1.732f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } -}; - -/* - * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: - * Y is in [16,235], Cb and Cr are in [16,240] - * R, G, and B are in [0,255] - */ -static const struct fragment_shader_consts bt_601_full = -{ - { - 0.062745098f, 0.501960784f, 0.501960784f, 0.0f - }, - { - 1.164f, 0.0f, 1.596f, 0.0f, - 1.164f, -0.391f, -0.813f, 0.0f, - 1.164f, 2.018f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } -}; - -/* - * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: - * Y is in [16,235], Cb and Cr are in [16,240] - * R, G, and B are in [16,235] - */ -static const struct fragment_shader_consts bt_709 = -{ - { - 0.0f, 0.501960784f, 0.501960784f, 0.0f - }, - { - 1.0f, 0.0f, 1.540f, 0.0f, - 1.0f, -0.183f, -0.459f, 0.0f, - 1.0f, 1.816f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } -}; - -/* - * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: - * Y is in [16,235], Cb and Cr are in [16,240] - * R, G, and B are in [0,255] - */ -const struct fragment_shader_consts bt_709_full = -{ - { - 0.062745098f, 0.501960784f, 0.501960784f, 0.0f - }, - { - 1.164f, 0.0f, 1.793f, 0.0f, - 1.164f, -0.213f, -0.534f, 0.0f, - 1.164f, 2.115f, 0.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } -}; - static void create_vert_shader(struct vl_compositor *c) { @@ -245,10 +157,9 @@ create_frag_shader(struct vl_compositor *c) ti += tgsi_build_full_declaration(&decl, &tokens[ti], header, max_tokens - ti); /* - * decl c0 ; Bias vector for CSC - * decl c1-c4 ; CSC matrix c1-c4 + * decl c0-c3 ; CSC matrix c0-c3 */ - decl = vl_decl_constants(TGSI_SEMANTIC_GENERIC, 0, 0, 4); + decl = vl_decl_constants(TGSI_SEMANTIC_GENERIC, 0, 0, 3); ti += tgsi_build_full_declaration(&decl, &tokens[ti], header, max_tokens - ti); /* decl o0 ; Fragment color */ @@ -267,17 +178,14 @@ create_frag_shader(struct vl_compositor *c) inst = vl_tex(TGSI_TEXTURE_2D, TGSI_FILE_TEMPORARY, 0, TGSI_FILE_INPUT, 0, TGSI_FILE_SAMPLER, 0); ti += tgsi_build_full_instruction(&inst, &tokens[ti], header, max_tokens - ti); - /* sub t0, t0, c0 ; Subtract bias vector from pixel */ - inst = vl_inst3(TGSI_OPCODE_SUB, TGSI_FILE_TEMPORARY, 0, TGSI_FILE_TEMPORARY, 0, TGSI_FILE_CONSTANT, 0); - ti += tgsi_build_full_instruction(&inst, &tokens[ti], header, max_tokens - ti); - /* - * dp4 o0.x, t0, c1 ; Multiply pixel by the color conversion matrix - * dp4 o0.y, t0, c2 - * dp4 o0.z, t0, c3 + * dp4 o0.x, t0, c0 ; Multiply pixel by the color conversion matrix + * dp4 o0.y, t0, c1 + * dp4 o0.z, t0, c2 + * dp4 o0.w, t0, c3 */ - for (i = 0; i < 3; ++i) { - inst = vl_inst3(TGSI_OPCODE_DP4, TGSI_FILE_OUTPUT, 0, TGSI_FILE_TEMPORARY, 0, TGSI_FILE_CONSTANT, i + 1); + for (i = 0; i < 4; ++i) { + inst = vl_inst3(TGSI_OPCODE_DP4, TGSI_FILE_OUTPUT, 0, TGSI_FILE_TEMPORARY, 0, TGSI_FILE_CONSTANT, i); inst.FullDstRegisters[0].DstRegister.WriteMask = TGSI_WRITEMASK_X << i; ti += tgsi_build_full_instruction(&inst, &tokens[ti], header, max_tokens - ti); } @@ -352,6 +260,8 @@ static void cleanup_shaders(struct vl_compositor *c) static bool init_buffers(struct vl_compositor *c) { + struct fragment_shader_consts fsc; + assert(c); /* @@ -438,18 +348,9 @@ init_buffers(struct vl_compositor *c) sizeof(struct fragment_shader_consts) ); - /* - * TODO: Refactor this into a seperate function, - * allow changing the CSC matrix at runtime to switch between regular & full versions - */ - memcpy - ( - pipe_buffer_map(c->pipe->screen, c->fs_const_buf.buffer, PIPE_BUFFER_USAGE_CPU_WRITE), - &bt_601_full, - sizeof(struct fragment_shader_consts) - ); + vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY, NULL, true, fsc.matrix); - pipe_buffer_unmap(c->pipe->screen, c->fs_const_buf.buffer); + vl_compositor_set_csc_matrix(c, fsc.matrix); return true; } @@ -588,3 +489,17 @@ void vl_compositor_render(struct vl_compositor *compositor, pipe_surface_reference(&compositor->fb_state.cbufs[0], NULL); } + +void vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float *mat) +{ + assert(compositor); + + memcpy + ( + pipe_buffer_map(compositor->pipe->screen, compositor->fs_const_buf.buffer, PIPE_BUFFER_USAGE_CPU_WRITE), + mat, + sizeof(struct fragment_shader_consts) + ); + + pipe_buffer_unmap(compositor->pipe->screen, compositor->fs_const_buf.buffer); +} diff --git a/src/gallium/auxiliary/vl/vl_compositor.h b/src/gallium/auxiliary/vl/vl_compositor.h index 19ad66d9c61..975ea00bde0 100644 --- a/src/gallium/auxiliary/vl/vl_compositor.h +++ b/src/gallium/auxiliary/vl/vl_compositor.h @@ -44,4 +44,6 @@ void vl_compositor_render(struct vl_compositor *compositor, struct pipe_video_rect *layer_dst_areas,*/ struct pipe_fence_handle **fence); +void vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float *mat); + #endif /* vl_compositor_h */ diff --git a/src/gallium/auxiliary/vl/vl_csc.c b/src/gallium/auxiliary/vl/vl_csc.c new file mode 100644 index 00000000000..828cebe4ed4 --- /dev/null +++ b/src/gallium/auxiliary/vl/vl_csc.c @@ -0,0 +1,179 @@ +#include "vl_csc.h" +#include <util/u_math.h> +#include <util/u_debug.h> + +/* + * Color space conversion formulas + * + * To convert YCbCr to RGB, + * vec4 ycbcr, rgb + * mat44 csc + * rgb = csc * ycbcr + * + * To calculate the color space conversion matrix csc with ProcAmp adjustments, + * mat44 csc, cstd, procamp, bias + * csc = cstd * (procamp * bias) + * + * Where cstd is a matrix corresponding to one of the color standards (BT.601, BT.709, etc) + * adjusted for the kind of YCbCr -> RGB mapping wanted (1:1, full), + * bias is a matrix corresponding to the kind of YCbCr -> RGB mapping wanted (1:1, full) + * + * To calculate procamp, + * mat44 procamp, hue, saturation, brightness, contrast + * procamp = brightness * (saturation * (contrast * hue)) + * Alternatively, + * procamp = saturation * (brightness * (contrast * hue)) + * + * contrast + * [ c, 0, 0, 0] + * [ 0, c, 0, 0] + * [ 0, 0, c, 0] + * [ 0, 0, 0, 1] + * + * brightness + * [ 1, 0, 0, b] + * [ 0, 1, 0, 0] + * [ 0, 0, 1, 0] + * [ 0, 0, 0, 1] + * + * saturation + * [ 1, 0, 0, 0] + * [ 0, s, 0, 0] + * [ 0, 0, s, 0] + * [ 0, 0, 0, 1] + * + * hue + * [ 1, 0, 0, 0] + * [ 0, cos(h), sin(h), 0] + * [ 0, -sin(h), cos(h), 0] + * [ 0, 0, 0, 1] + * + * procamp + * [ c, 0, 0, b] + * [ 0, c*s*cos(h), c*s*sin(h), 0] + * [ 0, -c*s*sin(h), c*s*cos(h), 0] + * [ 0, 0, 0, 1] + * + * bias + * [ 1, 0, 0, ybias] + * [ 0, 1, 0, cbbias] + * [ 0, 0, 1, crbias] + * [ 0, 0, 0, 1] + * + * csc + * [ c*cstd[ 0], c*cstd[ 1]*s*cos(h) - c*cstd[ 2]*s*sin(h), c*cstd[ 2]*s*cos(h) + c*cstd[ 1]*s*sin(h), cstd[ 3] + cstd[ 0]*(b + c*ybias) + cstd[ 1]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[ 2]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] + * [ c*cstd[ 4], c*cstd[ 5]*s*cos(h) - c*cstd[ 6]*s*sin(h), c*cstd[ 6]*s*cos(h) + c*cstd[ 5]*s*sin(h), cstd[ 7] + cstd[ 4]*(b + c*ybias) + cstd[ 5]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[ 6]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] + * [ c*cstd[ 8], c*cstd[ 9]*s*cos(h) - c*cstd[10]*s*sin(h), c*cstd[10]*s*cos(h) + c*cstd[ 9]*s*sin(h), cstd[11] + cstd[ 8]*(b + c*ybias) + cstd[ 9]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[10]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] + * [ c*cstd[12], c*cstd[13]*s*cos(h) - c*cstd[14]*s*sin(h), c*cstd[14]*s*cos(h) + c*cstd[13]*s*sin(h), cstd[15] + cstd[12]*(b + c*ybias) + cstd[13]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[14]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] + */ + +/* + * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: + * Y is in [16,235], Cb and Cr are in [16,240] + * R, G, and B are in [16,235] + */ +static const float bt_601[16] = +{ + 1.0f, 0.0f, 1.371f, 0.0f, + 1.0f, -0.336f, -0.698f, 0.0f, + 1.0f, 1.732f, 0.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f +}; + +/* + * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: + * Y is in [16,235], Cb and Cr are in [16,240] + * R, G, and B are in [0,255] + */ +static const float bt_601_full[16] = +{ + 1.164f, 0.0f, 1.596f, 0.0f, + 1.164f, -0.391f, -0.813f, 0.0f, + 1.164f, 2.018f, 0.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f +}; + +/* + * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: + * Y is in [16,235], Cb and Cr are in [16,240] + * R, G, and B are in [16,235] + */ +static const float bt_709[16] = +{ + 1.0f, 0.0f, 1.540f, 0.0f, + 1.0f, -0.183f, -0.459f, 0.0f, + 1.0f, 1.816f, 0.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f +}; + +/* + * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: + * Y is in [16,235], Cb and Cr are in [16,240] + * R, G, and B are in [0,255] + */ +static const float bt_709_full[16] = +{ + 1.164f, 0.0f, 1.793f, 0.0f, + 1.164f, -0.213f, -0.534f, 0.0f, + 1.164f, 2.115f, 0.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f +}; + +static const float identity[16] = +{ + 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f +}; + +void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, + struct vl_procamp *procamp, + bool full_range, + float *matrix) +{ + float ybias = full_range ? -16.0f/255.0f : 0.0f; + float cbbias = -128.0f/255.0f; + float crbias = -128.0f/255.0f; + float c = procamp ? procamp->contrast : 1.0f; + float s = procamp ? procamp->saturation : 1.0f; + float b = procamp ? procamp->brightness : 0.0f; + float h = procamp ? procamp->hue : 0.0f; + const float *cstd; + + assert(matrix); + + switch (cs) { + case VL_CSC_COLOR_STANDARD_BT_601: + cstd = full_range ? &bt_601_full[0] : &bt_601[0]; + break; + case VL_CSC_COLOR_STANDARD_BT_709: + cstd = full_range ? &bt_709_full[0] : &bt_709[0]; + break; + case VL_CSC_COLOR_STANDARD_IDENTITY: + default: + assert(cs == VL_CSC_COLOR_STANDARD_IDENTITY); + memcpy(matrix, &identity[0], sizeof(float) * 16); + return; + } + + matrix[ 0] = c*cstd[ 0]; + matrix[ 1] = c*cstd[ 1]*s*cosf(h) - c*cstd[ 2]*s*sinf(h); + matrix[ 2] = c*cstd[ 2]*s*cosf(h) + c*cstd[ 1]*s*sinf(h); + matrix[ 3] = cstd[ 3] + cstd[ 0]*(b + c*ybias) + cstd[ 1]*(c*cbbias*s*cosf(h) + c*crbias*s*sinf(h)) + cstd[ 2]*(c*crbias*s*cosf(h) - c*cbbias*s*sinf(h)); + + matrix[ 4] = c*cstd[ 4]; + matrix[ 5] = c*cstd[ 5]*s*cosf(h) - c*cstd[ 6]*s*sinf(h); + matrix[ 6] = c*cstd[ 6]*s*cosf(h) + c*cstd[ 5]*s*sinf(h); + matrix[ 7] = cstd[ 7] + cstd[ 4]*(b + c*ybias) + cstd[ 5]*(c*cbbias*s*cosf(h) + c*crbias*s*sinf(h)) + cstd[ 6]*(c*crbias*s*cosf(h) - c*cbbias*s*sinf(h)); + + matrix[ 8] = c*cstd[ 8]; + matrix[ 9] = c*cstd[ 9]*s*cosf(h) - c*cstd[10]*s*sinf(h); + matrix[10] = c*cstd[10]*s*cosf(h) + c*cstd[ 9]*s*sinf(h); + matrix[11] = cstd[11] + cstd[ 8]*(b + c*ybias) + cstd[ 9]*(c*cbbias*s*cosf(h) + c*crbias*s*sinf(h)) + cstd[10]*(c*crbias*s*cosf(h) - c*cbbias*s*sinf(h)); + + matrix[12] = c*cstd[12]; + matrix[13] = c*cstd[13]*s*cos(h) - c*cstd[14]*s*sin(h); + matrix[14] = c*cstd[14]*s*cos(h) + c*cstd[13]*s*sin(h); + matrix[15] = cstd[15] + cstd[12]*(b + c*ybias) + cstd[13]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[14]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h)); +} diff --git a/src/gallium/auxiliary/vl/vl_csc.h b/src/gallium/auxiliary/vl/vl_csc.h new file mode 100644 index 00000000000..c3b87d279cf --- /dev/null +++ b/src/gallium/auxiliary/vl/vl_csc.h @@ -0,0 +1,26 @@ +#ifndef vl_csc_h +#define vl_csc_h + +#include <pipe/p_compiler.h> + +struct vl_procamp +{ + float brightness; + float contrast; + float saturation; + float hue; +}; + +enum VL_CSC_COLOR_STANDARD +{ + VL_CSC_COLOR_STANDARD_IDENTITY, + VL_CSC_COLOR_STANDARD_BT_601, + VL_CSC_COLOR_STANDARD_BT_709 +}; + +void vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, + struct vl_procamp *procamp, + bool full_range, + float *matrix); + +#endif /* vl_csc_h */ |