| /********************************************************** |
| * Copyright 2009-2011 VMware, Inc. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person |
| * obtaining a copy of this software and associated documentation |
| * files (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, copy, |
| * modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| ********************************************************* |
| * Authors: |
| * Zack Rusin <zackr-at-vmware-dot-com> |
| */ |
| |
| #include "xa_context.h" |
| #include "xa_priv.h" |
| #include <math.h> |
| #include "cso_cache/cso_context.h" |
| #include "util/u_inlines.h" |
| #include "util/u_sampler.h" |
| #include "util/u_draw_quad.h" |
| |
| #define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y))) |
| #define floatIsZero(x) (floatsEqual((x) + 1, 1)) |
| |
| #define NUM_COMPONENTS 4 |
| |
| void |
| |
| |
| renderer_set_constants(struct xa_context *r, |
| int shader_type, const float *params, int param_bytes); |
| |
| static INLINE boolean |
| is_affine(float *matrix) |
| { |
| return floatIsZero(matrix[2]) && floatIsZero(matrix[5]) |
| && floatsEqual(matrix[8], 1); |
| } |
| |
| static INLINE void |
| map_point(float *mat, float x, float y, float *out_x, float *out_y) |
| { |
| if (!mat) { |
| *out_x = x; |
| *out_y = y; |
| return; |
| } |
| |
| *out_x = mat[0] * x + mat[3] * y + mat[6]; |
| *out_y = mat[1] * x + mat[4] * y + mat[7]; |
| if (!is_affine(mat)) { |
| float w = 1 / (mat[2] * x + mat[5] * y + mat[8]); |
| |
| *out_x *= w; |
| *out_y *= w; |
| } |
| } |
| |
| static INLINE void |
| renderer_draw(struct xa_context *r) |
| { |
| int num_verts = r->buffer_size / (r->attrs_per_vertex * NUM_COMPONENTS); |
| |
| if (!r->buffer_size) |
| return; |
| |
| cso_set_vertex_elements(r->cso, r->attrs_per_vertex, r->velems); |
| util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS, |
| num_verts, /* verts */ |
| r->attrs_per_vertex); /* attribs/vert */ |
| r->buffer_size = 0; |
| } |
| |
| static INLINE void |
| renderer_draw_conditional(struct xa_context *r, int next_batch) |
| { |
| if (r->buffer_size + next_batch >= XA_VB_SIZE || |
| (next_batch == 0 && r->buffer_size)) { |
| renderer_draw(r); |
| } |
| } |
| |
| void |
| renderer_init_state(struct xa_context *r) |
| { |
| struct pipe_depth_stencil_alpha_state dsa; |
| struct pipe_rasterizer_state raster; |
| unsigned i; |
| |
| /* set common initial clip state */ |
| memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state)); |
| cso_set_depth_stencil_alpha(r->cso, &dsa); |
| |
| /* XXX: move to renderer_init_state? */ |
| memset(&raster, 0, sizeof(struct pipe_rasterizer_state)); |
| raster.gl_rasterization_rules = 1; |
| raster.depth_clip = 1; |
| cso_set_rasterizer(r->cso, &raster); |
| |
| /* vertex elements state */ |
| memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3); |
| for (i = 0; i < 3; i++) { |
| r->velems[i].src_offset = i * 4 * sizeof(float); |
| r->velems[i].instance_divisor = 0; |
| r->velems[i].vertex_buffer_index = 0; |
| r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
| } |
| } |
| |
| static INLINE void |
| add_vertex_color(struct xa_context *r, float x, float y, float color[4]) |
| { |
| float *vertex = r->buffer + r->buffer_size; |
| |
| vertex[0] = x; |
| vertex[1] = y; |
| vertex[2] = 0.f; /*z */ |
| vertex[3] = 1.f; /*w */ |
| |
| vertex[4] = color[0]; /*r */ |
| vertex[5] = color[1]; /*g */ |
| vertex[6] = color[2]; /*b */ |
| vertex[7] = color[3]; /*a */ |
| |
| r->buffer_size += 8; |
| } |
| |
| static INLINE void |
| add_vertex_1tex(struct xa_context *r, float x, float y, float s, float t) |
| { |
| float *vertex = r->buffer + r->buffer_size; |
| |
| vertex[0] = x; |
| vertex[1] = y; |
| vertex[2] = 0.f; /*z */ |
| vertex[3] = 1.f; /*w */ |
| |
| vertex[4] = s; /*s */ |
| vertex[5] = t; /*t */ |
| vertex[6] = 0.f; /*r */ |
| vertex[7] = 1.f; /*q */ |
| |
| r->buffer_size += 8; |
| } |
| |
| static INLINE void |
| add_vertex_2tex(struct xa_context *r, |
| float x, float y, float s0, float t0, float s1, float t1) |
| { |
| float *vertex = r->buffer + r->buffer_size; |
| |
| vertex[0] = x; |
| vertex[1] = y; |
| vertex[2] = 0.f; /*z */ |
| vertex[3] = 1.f; /*w */ |
| |
| vertex[4] = s0; /*s */ |
| vertex[5] = t0; /*t */ |
| vertex[6] = 0.f; /*r */ |
| vertex[7] = 1.f; /*q */ |
| |
| vertex[8] = s1; /*s */ |
| vertex[9] = t1; /*t */ |
| vertex[10] = 0.f; /*r */ |
| vertex[11] = 1.f; /*q */ |
| |
| r->buffer_size += 12; |
| } |
| |
| static void |
| add_vertex_data1(struct xa_context *r, |
| float srcX, float srcY, float dstX, float dstY, |
| float width, float height, |
| struct pipe_resource *src, const float *src_matrix) |
| { |
| float s0, t0, s1, t1, s2, t2, s3, t3; |
| float pt0[2], pt1[2], pt2[2], pt3[2]; |
| |
| pt0[0] = srcX; |
| pt0[1] = srcY; |
| pt1[0] = (srcX + width); |
| pt1[1] = srcY; |
| pt2[0] = (srcX + width); |
| pt2[1] = (srcY + height); |
| pt3[0] = srcX; |
| pt3[1] = (srcY + height); |
| |
| if (src_matrix) { |
| map_point((float *)src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]); |
| map_point((float *)src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]); |
| map_point((float *)src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]); |
| map_point((float *)src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]); |
| } |
| |
| s0 = pt0[0] / src->width0; |
| s1 = pt1[0] / src->width0; |
| s2 = pt2[0] / src->width0; |
| s3 = pt3[0] / src->width0; |
| t0 = pt0[1] / src->height0; |
| t1 = pt1[1] / src->height0; |
| t2 = pt2[1] / src->height0; |
| t3 = pt3[1] / src->height0; |
| |
| /* 1st vertex */ |
| add_vertex_1tex(r, dstX, dstY, s0, t0); |
| /* 2nd vertex */ |
| add_vertex_1tex(r, dstX + width, dstY, s1, t1); |
| /* 3rd vertex */ |
| add_vertex_1tex(r, dstX + width, dstY + height, s2, t2); |
| /* 4th vertex */ |
| add_vertex_1tex(r, dstX, dstY + height, s3, t3); |
| } |
| |
| static void |
| add_vertex_data2(struct xa_context *r, |
| float srcX, float srcY, float maskX, float maskY, |
| float dstX, float dstY, float width, float height, |
| struct pipe_resource *src, |
| struct pipe_resource *mask, |
| const float *src_matrix, const float *mask_matrix) |
| { |
| float src_s0, src_t0, src_s1, src_t1; |
| float mask_s0, mask_t0, mask_s1, mask_t1; |
| float spt0[2], spt1[2]; |
| float mpt0[2], mpt1[2]; |
| |
| spt0[0] = srcX; |
| spt0[1] = srcY; |
| spt1[0] = srcX + width; |
| spt1[1] = srcY + height; |
| |
| mpt0[0] = maskX; |
| mpt0[1] = maskY; |
| mpt1[0] = maskX + width; |
| mpt1[1] = maskY + height; |
| |
| if (src_matrix) { |
| map_point((float *)src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]); |
| map_point((float *)src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]); |
| } |
| |
| if (mask_matrix) { |
| map_point((float *)mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]); |
| map_point((float *)mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]); |
| } |
| |
| src_s0 = spt0[0] / src->width0; |
| src_t0 = spt0[1] / src->height0; |
| src_s1 = spt1[0] / src->width0; |
| src_t1 = spt1[1] / src->height0; |
| |
| mask_s0 = mpt0[0] / mask->width0; |
| mask_t0 = mpt0[1] / mask->height0; |
| mask_s1 = mpt1[0] / mask->width0; |
| mask_t1 = mpt1[1] / mask->height0; |
| |
| /* 1st vertex */ |
| add_vertex_2tex(r, dstX, dstY, |
| src_s0, src_t0, mask_s0, mask_t0); |
| /* 2nd vertex */ |
| add_vertex_2tex(r, dstX + width, dstY, |
| src_s1, src_t0, mask_s1, mask_t0); |
| /* 3rd vertex */ |
| add_vertex_2tex(r, dstX + width, dstY + height, |
| src_s1, src_t1, mask_s1, mask_t1); |
| /* 4th vertex */ |
| add_vertex_2tex(r, dstX, dstY + height, |
| src_s0, src_t1, mask_s0, mask_t1); |
| } |
| |
| static void |
| setup_vertex_data_yuv(struct xa_context *r, |
| float srcX, |
| float srcY, |
| float srcW, |
| float srcH, |
| float dstX, |
| float dstY, |
| float dstW, float dstH, struct xa_surface *srf[]) |
| { |
| float s0, t0, s1, t1; |
| float spt0[2], spt1[2]; |
| struct pipe_resource *tex; |
| |
| spt0[0] = srcX; |
| spt0[1] = srcY; |
| spt1[0] = srcX + srcW; |
| spt1[1] = srcY + srcH; |
| |
| tex = srf[0]->tex; |
| s0 = spt0[0] / tex->width0; |
| t0 = spt0[1] / tex->height0; |
| s1 = spt1[0] / tex->width0; |
| t1 = spt1[1] / tex->height0; |
| |
| /* 1st vertex */ |
| add_vertex_1tex(r, dstX, dstY, s0, t0); |
| /* 2nd vertex */ |
| add_vertex_1tex(r, dstX + dstW, dstY, s1, t0); |
| /* 3rd vertex */ |
| add_vertex_1tex(r, dstX + dstW, dstY + dstH, s1, t1); |
| /* 4th vertex */ |
| add_vertex_1tex(r, dstX, dstY + dstH, s0, t1); |
| } |
| |
| /* Set up framebuffer, viewport and vertex shader constant buffer |
| * state for a particular destinaton surface. In all our rendering, |
| * these concepts are linked. |
| */ |
| void |
| renderer_bind_destination(struct xa_context *r, |
| struct pipe_surface *surface, int width, int height) |
| { |
| |
| struct pipe_framebuffer_state fb; |
| struct pipe_viewport_state viewport; |
| |
| /* Framebuffer uses actual surface width/height |
| */ |
| memset(&fb, 0, sizeof fb); |
| fb.width = surface->width; |
| fb.height = surface->height; |
| fb.nr_cbufs = 1; |
| fb.cbufs[0] = surface; |
| fb.zsbuf = 0; |
| |
| /* Viewport just touches the bit we're interested in: |
| */ |
| viewport.scale[0] = width / 2.f; |
| viewport.scale[1] = height / 2.f; |
| viewport.scale[2] = 1.0; |
| viewport.scale[3] = 1.0; |
| viewport.translate[0] = width / 2.f; |
| viewport.translate[1] = height / 2.f; |
| viewport.translate[2] = 0.0; |
| viewport.translate[3] = 0.0; |
| |
| /* Constant buffer set up to match viewport dimensions: |
| */ |
| if (r->fb_width != width || r->fb_height != height) { |
| float vs_consts[8] = { |
| 2.f / width, 2.f / height, 1, 1, |
| -1, -1, 0, 0 |
| }; |
| |
| r->fb_width = width; |
| r->fb_height = height; |
| |
| renderer_set_constants(r, PIPE_SHADER_VERTEX, |
| vs_consts, sizeof vs_consts); |
| } |
| |
| cso_set_framebuffer(r->cso, &fb); |
| cso_set_viewport(r->cso, &viewport); |
| } |
| |
| void |
| renderer_set_constants(struct xa_context *r, |
| int shader_type, const float *params, int param_bytes) |
| { |
| struct pipe_resource **cbuf = |
| (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer : |
| &r->fs_const_buffer; |
| |
| pipe_resource_reference(cbuf, NULL); |
| *cbuf = pipe_buffer_create(r->pipe->screen, |
| PIPE_BIND_CONSTANT_BUFFER, PIPE_USAGE_STATIC, |
| param_bytes); |
| |
| if (*cbuf) { |
| pipe_buffer_write(r->pipe, *cbuf, 0, param_bytes, params); |
| } |
| pipe_set_constant_buffer(r->pipe, shader_type, 0, *cbuf); |
| } |
| |
| void |
| renderer_copy_prepare(struct xa_context *r, |
| struct pipe_surface *dst_surface, |
| struct pipe_resource *src_texture, |
| const enum xa_formats src_xa_format, |
| const enum xa_formats dst_xa_format) |
| { |
| struct pipe_context *pipe = r->pipe; |
| struct pipe_screen *screen = pipe->screen; |
| struct xa_shader shader; |
| uint32_t fs_traits = FS_COMPOSITE; |
| |
| assert(screen->is_format_supported(screen, dst_surface->format, |
| PIPE_TEXTURE_2D, 0, |
| PIPE_BIND_RENDER_TARGET)); |
| (void)screen; |
| |
| /* set misc state we care about */ |
| { |
| struct pipe_blend_state blend; |
| |
| memset(&blend, 0, sizeof(blend)); |
| blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; |
| blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; |
| blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; |
| blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; |
| blend.rt[0].colormask = PIPE_MASK_RGBA; |
| cso_set_blend(r->cso, &blend); |
| } |
| |
| /* sampler */ |
| { |
| struct pipe_sampler_state sampler; |
| |
| memset(&sampler, 0, sizeof(sampler)); |
| sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; |
| sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; |
| sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; |
| sampler.normalized_coords = 1; |
| cso_single_sampler(r->cso, PIPE_SHADER_FRAGMENT, 0, &sampler); |
| cso_single_sampler_done(r->cso, PIPE_SHADER_FRAGMENT); |
| } |
| |
| renderer_bind_destination(r, dst_surface, |
| dst_surface->width, dst_surface->height); |
| |
| /* texture/sampler view */ |
| { |
| struct pipe_sampler_view templ; |
| struct pipe_sampler_view *src_view; |
| |
| u_sampler_view_default_template(&templ, |
| src_texture, src_texture->format); |
| src_view = pipe->create_sampler_view(pipe, src_texture, &templ); |
| cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view); |
| pipe_sampler_view_reference(&src_view, NULL); |
| } |
| |
| /* shaders */ |
| if (src_texture->format == PIPE_FORMAT_L8_UNORM) |
| fs_traits |= FS_SRC_LUMINANCE; |
| if (dst_surface->format == PIPE_FORMAT_L8_UNORM) |
| fs_traits |= FS_DST_LUMINANCE; |
| if (xa_format_a(dst_xa_format) != 0 && |
| xa_format_a(src_xa_format) == 0) |
| fs_traits |= FS_SRC_SET_ALPHA; |
| |
| shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits); |
| cso_set_vertex_shader_handle(r->cso, shader.vs); |
| cso_set_fragment_shader_handle(r->cso, shader.fs); |
| |
| r->buffer_size = 0; |
| r->attrs_per_vertex = 2; |
| } |
| |
| void |
| renderer_copy(struct xa_context *r, |
| int dx, |
| int dy, |
| int sx, |
| int sy, |
| int width, int height, float src_width, float src_height) |
| { |
| float s0, t0, s1, t1; |
| float x0, y0, x1, y1; |
| |
| /* XXX: could put the texcoord scaling calculation into the vertex |
| * shader. |
| */ |
| s0 = sx / src_width; |
| s1 = (sx + width) / src_width; |
| t0 = sy / src_height; |
| t1 = (sy + height) / src_height; |
| |
| x0 = dx; |
| x1 = dx + width; |
| y0 = dy; |
| y1 = dy + height; |
| |
| /* draw quad */ |
| renderer_draw_conditional(r, 4 * 8); |
| add_vertex_1tex(r, x0, y0, s0, t0); |
| add_vertex_1tex(r, x1, y0, s1, t0); |
| add_vertex_1tex(r, x1, y1, s1, t1); |
| add_vertex_1tex(r, x0, y1, s0, t1); |
| } |
| |
| void |
| renderer_draw_yuv(struct xa_context *r, |
| float src_x, |
| float src_y, |
| float src_w, |
| float src_h, |
| int dst_x, |
| int dst_y, int dst_w, int dst_h, struct xa_surface *srf[]) |
| { |
| const int num_attribs = 2; /*pos + tex coord */ |
| |
| setup_vertex_data_yuv(r, |
| src_x, src_y, src_w, src_h, |
| dst_x, dst_y, dst_w, dst_h, srf); |
| |
| cso_set_vertex_elements(r->cso, num_attribs, r->velems); |
| util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS, |
| 4, /* verts */ |
| num_attribs); /* attribs/vert */ |
| r->buffer_size = 0; |
| } |
| |
| void |
| renderer_begin_solid(struct xa_context *r) |
| { |
| r->buffer_size = 0; |
| r->attrs_per_vertex = 2; |
| } |
| |
| void |
| renderer_solid(struct xa_context *r, |
| int x0, int y0, int x1, int y1, float *color) |
| { |
| /* |
| * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n", |
| * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */ |
| |
| renderer_draw_conditional(r, 4 * 8); |
| |
| /* 1st vertex */ |
| add_vertex_color(r, x0, y0, color); |
| /* 2nd vertex */ |
| add_vertex_color(r, x1, y0, color); |
| /* 3rd vertex */ |
| add_vertex_color(r, x1, y1, color); |
| /* 4th vertex */ |
| add_vertex_color(r, x0, y1, color); |
| } |
| |
| void |
| renderer_draw_flush(struct xa_context *r) |
| { |
| renderer_draw_conditional(r, 0); |
| } |
| |
| void |
| renderer_begin_textures(struct xa_context *r) |
| { |
| r->attrs_per_vertex = 1 + r->num_bound_samplers; |
| r->buffer_size = 0; |
| } |
| |
| void |
| renderer_texture(struct xa_context *r, |
| int *pos, |
| int width, int height, |
| const float *src_matrix, |
| const float *mask_matrix) |
| { |
| struct pipe_sampler_view **sampler_view = r->bound_sampler_views; |
| |
| #if 0 |
| if (src_matrix) { |
| debug_printf("src_matrix = \n"); |
| debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]); |
| debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]); |
| debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]); |
| } |
| if (mask_matrix) { |
| debug_printf("mask_matrix = \n"); |
| debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]); |
| debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]); |
| debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]); |
| } |
| #endif |
| |
| switch(r->attrs_per_vertex) { |
| case 2: |
| renderer_draw_conditional(r, 4 * 8); |
| add_vertex_data1(r, |
| pos[0], pos[1], /* src */ |
| pos[4], pos[5], /* dst */ |
| width, height, |
| sampler_view[0]->texture, src_matrix); |
| break; |
| case 3: |
| renderer_draw_conditional(r, 4 * 12); |
| add_vertex_data2(r, |
| pos[0], pos[1], /* src */ |
| pos[2], pos[3], /* mask */ |
| pos[4], pos[5], /* dst */ |
| width, height, |
| sampler_view[0]->texture, sampler_view[1]->texture, |
| src_matrix, mask_matrix); |
| break; |
| default: |
| break; |
| } |
| } |