diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_clear.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_clear.c | 124 |
1 files changed, 75 insertions, 49 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_clear.c b/mesalib/src/mesa/state_tracker/st_cb_clear.c index 8da664afb..887e58bd9 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_clear.c +++ b/mesalib/src/mesa/state_tracker/st_cb_clear.c @@ -51,6 +51,7 @@ #include "pipe/p_state.h" #include "pipe/p_defines.h" #include "util/u_format.h" +#include "util/u_framebuffer.h" #include "util/u_inlines.h" #include "util/u_simple_shaders.h" #include "util/u_draw_quad.h" @@ -129,6 +130,26 @@ set_vertex_shader(struct st_context *st) } +static void +set_vertex_shader_layered(struct st_context *st) +{ + struct pipe_context *pipe = st->pipe; + + if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_TGSI_INSTANCEID) || + !pipe->screen->get_param(pipe->screen, PIPE_CAP_TGSI_VS_LAYER)) { + assert(!"Got layered clear, but the VS layer output is unsupported"); + set_vertex_shader(st); + return; + } + + if (!st->clear.vs_layered) { + st->clear.vs_layered = util_make_layered_clear_vertex_shader(pipe); + } + + cso_set_vertex_shader_handle(st->cso_context, st->clear.vs_layered); +} + + /** * Draw a screen-aligned quadrilateral. * Coords are clip coords with y=0=bottom. @@ -136,15 +157,19 @@ set_vertex_shader(struct st_context *st) static void draw_quad(struct st_context *st, float x0, float y0, float x1, float y1, GLfloat z, + unsigned num_instances, const union pipe_color_union *color) { - struct pipe_context *pipe = st->pipe; - struct pipe_resource *vbuf = NULL; - GLuint i, offset; + struct cso_context *cso = st->cso_context; + struct pipe_vertex_buffer vb = {0}; + GLuint i; float (*vertices)[2][4]; /**< vertex pos + color */ + vb.stride = 8 * sizeof(float); + if (u_upload_alloc(st->uploader, 0, 4 * sizeof(vertices[0]), - &offset, &vbuf, (void **) &vertices) != PIPE_OK) { + &vb.buffer_offset, &vb.buffer, + (void **) &vertices) != PIPE_OK) { return; } @@ -174,16 +199,10 @@ draw_quad(struct st_context *st, u_upload_unmap(st->uploader); /* draw */ - util_draw_vertex_buffer(pipe, - st->cso_context, - vbuf, - cso_get_aux_vertex_buffer_slot(st->cso_context), - offset, - PIPE_PRIM_TRIANGLE_FAN, - 4, /* verts */ - 2); /* attribs/vert */ - - pipe_resource_reference(&vbuf, NULL); + cso_set_vertex_buffers(cso, cso_get_aux_vertex_buffer_slot(cso), 1, &vb); + cso_draw_arrays_instanced(cso, PIPE_PRIM_TRIANGLE_FAN, 0, 4, + 0, num_instances); + pipe_resource_reference(&vb.buffer, NULL); } @@ -194,8 +213,7 @@ draw_quad(struct st_context *st, * ctx->DrawBuffer->_X/Ymin/max fields. */ static void -clear_with_quad(struct gl_context *ctx, - GLboolean color, GLboolean depth, GLboolean stencil) +clear_with_quad(struct gl_context *ctx, unsigned clear_buffers) { struct st_context *st = st_context(ctx); const struct gl_framebuffer *fb = ctx->DrawBuffer; @@ -205,7 +223,8 @@ clear_with_quad(struct gl_context *ctx, const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f; const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f; const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f; - union pipe_color_union clearColor; + unsigned num_layers = + util_framebuffer_get_num_layers(&st->state.framebuffer); /* printf("%s %s%s%s %f,%f %f,%f\n", __FUNCTION__, @@ -233,7 +252,7 @@ clear_with_quad(struct gl_context *ctx, { struct pipe_blend_state blend; memset(&blend, 0, sizeof(blend)); - if (color) { + if (clear_buffers & PIPE_CLEAR_COLOR) { int num_buffers = ctx->Extensions.EXT_draw_buffers2 ? ctx->DrawBuffer->_NumColorDrawBuffers : 1; int i; @@ -241,6 +260,9 @@ clear_with_quad(struct gl_context *ctx, blend.independent_blend_enable = num_buffers > 1; for (i = 0; i < num_buffers; i++) { + if (!(clear_buffers & (PIPE_CLEAR_COLOR0 << i))) + continue; + if (ctx->Color.ColorMask[i][0]) blend.rt[i].colormask |= PIPE_MASK_R; if (ctx->Color.ColorMask[i][1]) @@ -261,13 +283,13 @@ clear_with_quad(struct gl_context *ctx, { struct pipe_depth_stencil_alpha_state depth_stencil; memset(&depth_stencil, 0, sizeof(depth_stencil)); - if (depth) { + if (clear_buffers & PIPE_CLEAR_DEPTH) { depth_stencil.depth.enabled = 1; depth_stencil.depth.writemask = 1; depth_stencil.depth.func = PIPE_FUNC_ALWAYS; } - if (stencil) { + if (clear_buffers & PIPE_CLEAR_STENCIL) { struct pipe_stencil_ref stencil_ref; memset(&stencil_ref, 0, sizeof(stencil_ref)); depth_stencil.stencil[0].enabled = 1; @@ -305,21 +327,20 @@ clear_with_quad(struct gl_context *ctx, } set_fragment_shader(st); - set_vertex_shader(st); cso_set_geometry_shader_handle(st->cso_context, NULL); - if (ctx->DrawBuffer->_ColorDrawBuffers[0]) { - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - GLboolean is_integer = _mesa_is_enum_format_integer(rb->InternalFormat); + if (num_layers > 1) + set_vertex_shader_layered(st); + else + set_vertex_shader(st); - st_translate_color(&ctx->Color.ClearColor, - &clearColor, - ctx->DrawBuffer->_ColorDrawBuffers[0]->_BaseFormat, - is_integer); - } + /* We can't translate the clear color to the colorbuffer format, + * because different colorbuffers may have different formats. + */ /* draw quad matching scissor rect */ - draw_quad(st, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, &clearColor); + draw_quad(st, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, num_layers, + (union pipe_color_union*)&ctx->Color.ClearColor); /* Restore pipe state */ cso_restore_blend(st->cso_context); @@ -352,6 +373,19 @@ is_scissor_enabled(struct gl_context *ctx, struct gl_renderbuffer *rb) /** + * Return if all of the color channels are masked. + */ +static INLINE GLboolean +is_color_disabled(struct gl_context *ctx, int i) +{ + return !ctx->Color.ColorMask[i][0] && + !ctx->Color.ColorMask[i][1] && + !ctx->Color.ColorMask[i][2] && + !ctx->Color.ColorMask[i][3]; +} + + +/** * Return if any of the color channels are masked. */ static INLINE GLboolean @@ -408,11 +442,14 @@ st_Clear(struct gl_context *ctx, GLbitfield mask) if (!strb || !strb->surface) continue; + if (is_color_disabled(ctx, colormask_index)) + continue; + if (is_scissor_enabled(ctx, rb) || is_color_masked(ctx, colormask_index)) - quad_buffers |= PIPE_CLEAR_COLOR; + quad_buffers |= PIPE_CLEAR_COLOR0 << i; else - clear_buffers |= PIPE_CLEAR_COLOR; + clear_buffers |= PIPE_CLEAR_COLOR0 << i; } } } @@ -445,24 +482,13 @@ st_Clear(struct gl_context *ctx, GLbitfield mask) */ if (quad_buffers) { quad_buffers |= clear_buffers; - clear_with_quad(ctx, - quad_buffers & PIPE_CLEAR_COLOR, - quad_buffers & PIPE_CLEAR_DEPTH, - quad_buffers & PIPE_CLEAR_STENCIL); + clear_with_quad(ctx, quad_buffers); } else if (clear_buffers) { - union pipe_color_union clearColor; - - if (ctx->DrawBuffer->_ColorDrawBuffers[0]) { - struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; - GLboolean is_integer = _mesa_is_enum_format_integer(rb->InternalFormat); - - st_translate_color(&ctx->Color.ClearColor, - &clearColor, - ctx->DrawBuffer->_ColorDrawBuffers[0]->_BaseFormat, - is_integer); - } - - st->pipe->clear(st->pipe, clear_buffers, &clearColor, + /* We can't translate the clear color to the colorbuffer format, + * because different colorbuffers may have different formats. + */ + st->pipe->clear(st->pipe, clear_buffers, + (union pipe_color_union*)&ctx->Color.ClearColor, ctx->Depth.Clear, ctx->Stencil.Clear); } if (mask & BUFFER_BIT_ACCUM) |