diff options
Diffstat (limited to 'src/gallium/state_trackers/vega/renderer.c')
| -rw-r--r-- | src/gallium/state_trackers/vega/renderer.c | 118 |
1 files changed, 81 insertions, 37 deletions
diff --git a/src/gallium/state_trackers/vega/renderer.c b/src/gallium/state_trackers/vega/renderer.c index 080bcf6fb3f..3a332498b9a 100644 --- a/src/gallium/state_trackers/vega/renderer.c +++ b/src/gallium/state_trackers/vega/renderer.c @@ -83,9 +83,10 @@ struct renderer { struct pipe_depth_stencil_alpha_state dsa; struct pipe_framebuffer_state fb; } g3d; + struct matrix projection; + struct matrix mvp; struct pipe_resource *vs_cbuf; - VGfloat vs_cbuf_data[8]; struct pipe_resource *fs_cbuf; VGfloat fs_cbuf_data[32]; @@ -142,13 +143,56 @@ static VGboolean renderer_can_support(struct renderer *renderer, } /** + * Set the model-view-projection matrix used by vertex shaders. + */ +static void renderer_set_mvp(struct renderer *renderer, + const struct matrix *mvp) +{ + struct matrix *cur = &renderer->mvp; + struct pipe_resource *cbuf; + VGfloat consts[3][4]; + VGint i; + + /* projection only */ + if (!mvp) + mvp = &renderer->projection; + + /* re-upload only if necessary */ + if (memcmp(cur, mvp, sizeof(*mvp)) == 0) + return; + + /* 3x3 matrix to 3 constant vectors (no Z) */ + for (i = 0; i < 3; i++) { + consts[i][0] = mvp->m[i + 0]; + consts[i][1] = mvp->m[i + 3]; + consts[i][2] = 0.0f; + consts[i][3] = mvp->m[i + 6]; + } + + cbuf = renderer->vs_cbuf; + pipe_resource_reference(&cbuf, NULL); + cbuf = pipe_buffer_create(renderer->pipe->screen, + PIPE_BIND_CONSTANT_BUFFER, + sizeof(consts)); + if (cbuf) { + pipe_buffer_write(renderer->pipe, cbuf, + 0, sizeof(consts), consts); + } + renderer->pipe->set_constant_buffer(renderer->pipe, + PIPE_SHADER_VERTEX, 0, cbuf); + + memcpy(cur, mvp, sizeof(*mvp)); + renderer->vs_cbuf = cbuf; +} + +/** * Create a simple vertex shader that passes through position and the given * attribute. */ static void *create_passthrough_vs(struct pipe_context *pipe, int semantic_name) { struct ureg_program *ureg; - struct ureg_src src[2], constants[2]; + struct ureg_src src[2], constants[3]; struct ureg_dst dst[2], tmp; int i; @@ -156,16 +200,18 @@ static void *create_passthrough_vs(struct pipe_context *pipe, int semantic_name) if (!ureg) return NULL; - /* position in surface coordinates */ + /* position is in user coordinates */ src[0] = ureg_DECL_vs_input(ureg, 0); dst[0] = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0); tmp = ureg_DECL_temporary(ureg); - for (i = 0; i < 2; i++) + for (i = 0; i < Elements(constants); i++) constants[i] = ureg_DECL_constant(ureg, i); /* transform to clipped coordinates */ - ureg_MUL(ureg, tmp, src[0], constants[0]); - ureg_ADD(ureg, tmp, ureg_src(tmp), constants[1]); + ureg_DP4(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_X), src[0], constants[0]); + ureg_DP4(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_Y), src[0], constants[1]); + ureg_MOV(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_Z), src[0]); + ureg_DP4(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_W), src[0], constants[2]); ureg_MOV(ureg, dst[0], ureg_src(tmp)); if (semantic_name >= 0) { @@ -567,6 +613,8 @@ VGboolean renderer_copy_begin(struct renderer *renderer, renderer_set_fs(renderer, RENDERER_FS_TEXTURE); renderer_set_vs(renderer, RENDERER_VS_TEXTURE); + renderer_set_mvp(renderer, NULL); + /* remember the texture size */ renderer->u.copy.tex_width = src->texture->width0; renderer->u.copy.tex_height = src->texture->height0; @@ -638,6 +686,8 @@ VGboolean renderer_drawtex_begin(struct renderer *renderer, renderer_set_fs(renderer, RENDERER_FS_TEXTURE); renderer_set_vs(renderer, RENDERER_VS_TEXTURE); + renderer_set_mvp(renderer, NULL); + /* remember the texture size */ renderer->u.drawtex.tex_width = src->texture->width0; renderer->u.drawtex.tex_height = src->texture->height0; @@ -710,6 +760,8 @@ VGboolean renderer_scissor_begin(struct renderer *renderer, renderer_set_blend(renderer, 0); renderer_set_fs(renderer, RENDERER_FS_SCISSOR); + renderer_set_mvp(renderer, NULL); + renderer->u.scissor.restore_dsa = restore_dsa; renderer->state = RENDERER_STATE_SCISSOR; @@ -763,6 +815,8 @@ VGboolean renderer_clear_begin(struct renderer *renderer) renderer_set_fs(renderer, RENDERER_FS_COLOR); renderer_set_vs(renderer, RENDERER_VS_COLOR); + renderer_set_mvp(renderer, NULL); + renderer->state = RENDERER_STATE_CLEAR; return VG_TRUE; @@ -868,6 +922,8 @@ VGboolean renderer_filter_begin(struct renderer *renderer, renderer->u.filter.use_sampler = VG_FALSE; } + renderer_set_mvp(renderer, NULL); + renderer->state = RENDERER_STATE_FILTER; return VG_TRUE; @@ -1286,8 +1342,7 @@ void renderer_validate(struct renderer *renderer, if (dirty & FRAMEBUFFER_DIRTY) { struct pipe_framebuffer_state *fb = &renderer->g3d.fb; - struct pipe_resource *cbuf; - VGfloat vs_consts[8]; + struct matrix *proj = &renderer->projection; memset(fb, 0, sizeof(struct pipe_framebuffer_state)); fb->width = stfb->width; @@ -1299,34 +1354,9 @@ void renderer_validate(struct renderer *renderer, cso_set_framebuffer(renderer->cso, fb); vg_set_viewport(renderer, VEGA_Y0_BOTTOM); - /* surface coordinates to clipped coordinates */ - vs_consts[0] = 2.0f / fb->width; - vs_consts[1] = 2.0f / fb->height; - vs_consts[2] = 1.0f; - vs_consts[3] = 1.0f; - vs_consts[4] = -1.0f; - vs_consts[5] = -1.0f; - vs_consts[6] = 0.0f; - vs_consts[7] = 0.0f; - - /* upload if needed */ - cbuf = renderer->vs_cbuf; - if (!cbuf || - memcmp(renderer->vs_cbuf_data, vs_consts, sizeof(vs_consts)) != 0) { - pipe_resource_reference(&cbuf, NULL); - cbuf = pipe_buffer_create(renderer->pipe->screen, - PIPE_BIND_CONSTANT_BUFFER, - sizeof(vs_consts)); - if (cbuf) { - pipe_buffer_write(renderer->pipe, cbuf, 0, - sizeof(vs_consts), vs_consts); - } - renderer->pipe->set_constant_buffer(renderer->pipe, - PIPE_SHADER_VERTEX, 0, cbuf); - - renderer->vs_cbuf = cbuf; - memcpy(renderer->vs_cbuf_data, vs_consts, sizeof(vs_consts)); - } + matrix_load_identity(proj); + matrix_translate(proj, -1.0f, -1.0f); + matrix_scale(proj, 2.0f / fb->width, 2.0f / fb->height); /* we also got a new depth buffer */ if (dirty & DEPTH_STENCIL_DIRTY) { @@ -1349,18 +1379,32 @@ void renderer_validate_for_shader(struct renderer *renderer, const struct pipe_sampler_state **samplers, struct pipe_sampler_view **views, VGint num_samplers, + const struct matrix *modelview, void *fs, const void *const_buffer, VGint const_buffer_len) { + struct matrix mvp = renderer->projection; + + /* will be used in POLYGON_STENCIL and POLYGON_FILL */ + matrix_mult(&mvp, modelview); + renderer_set_mvp(renderer, &mvp); + renderer_set_custom_fs(renderer, fs, samplers, views, num_samplers, const_buffer, const_buffer_len); } void renderer_validate_for_mask_rendering(struct renderer *renderer, - struct pipe_surface *dst) + struct pipe_surface *dst, + const struct matrix *modelview) { + struct matrix mvp = renderer->projection; + + /* will be used in POLYGON_STENCIL and POLYGON_FILL */ + matrix_mult(&mvp, modelview); + renderer_set_mvp(renderer, &mvp); + renderer_set_target(renderer, dst, renderer->g3d.fb.zsbuf, VG_FALSE); renderer_set_blend(renderer, ~0); renderer_set_fs(renderer, RENDERER_FS_WHITE); |