diff options
Diffstat (limited to 'src/gallium/drivers/freedreno/freedreno_context.c')
| -rw-r--r-- | src/gallium/drivers/freedreno/freedreno_context.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/freedreno_context.c b/src/gallium/drivers/freedreno/freedreno_context.c index ab2faa429d6..402e88f7ca9 100644 --- a/src/gallium/drivers/freedreno/freedreno_context.c +++ b/src/gallium/drivers/freedreno/freedreno_context.c @@ -150,6 +150,82 @@ fd_set_debug_callback(struct pipe_context *pctx, memset(&ctx->debug, 0, sizeof(ctx->debug)); } +/* TODO we could combine a few of these small buffers (solid_vbuf, + * blit_texcoord_vbuf, and vsc_size_mem, into a single buffer and + * save a tiny bit of memory + */ + +static struct pipe_resource * +create_solid_vertexbuf(struct pipe_context *pctx) +{ + static const float init_shader_const[] = { + -1.000000, +1.000000, +1.000000, + +1.000000, -1.000000, +1.000000, + }; + struct pipe_resource *prsc = pipe_buffer_create(pctx->screen, + PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const)); + pipe_buffer_write(pctx, prsc, 0, + sizeof(init_shader_const), init_shader_const); + return prsc; +} + +static struct pipe_resource * +create_blit_texcoord_vertexbuf(struct pipe_context *pctx) +{ + struct pipe_resource *prsc = pipe_buffer_create(pctx->screen, + PIPE_BIND_CUSTOM, PIPE_USAGE_DYNAMIC, 16); + return prsc; +} + +void +fd_context_setup_common_vbos(struct fd_context *ctx) +{ + struct pipe_context *pctx = &ctx->base; + + ctx->solid_vbuf = create_solid_vertexbuf(pctx); + ctx->blit_texcoord_vbuf = create_blit_texcoord_vertexbuf(pctx); + + /* setup solid_vbuf_state: */ + ctx->solid_vbuf_state.vtx = pctx->create_vertex_elements_state( + pctx, 1, (struct pipe_vertex_element[]){{ + .vertex_buffer_index = 0, + .src_offset = 0, + .src_format = PIPE_FORMAT_R32G32B32_FLOAT, + }}); + ctx->solid_vbuf_state.vertexbuf.count = 1; + ctx->solid_vbuf_state.vertexbuf.vb[0].stride = 12; + ctx->solid_vbuf_state.vertexbuf.vb[0].buffer = ctx->solid_vbuf; + + /* setup blit_vbuf_state: */ + ctx->blit_vbuf_state.vtx = pctx->create_vertex_elements_state( + pctx, 2, (struct pipe_vertex_element[]){{ + .vertex_buffer_index = 0, + .src_offset = 0, + .src_format = PIPE_FORMAT_R32G32_FLOAT, + }, { + .vertex_buffer_index = 1, + .src_offset = 0, + .src_format = PIPE_FORMAT_R32G32B32_FLOAT, + }}); + ctx->blit_vbuf_state.vertexbuf.count = 2; + ctx->blit_vbuf_state.vertexbuf.vb[0].stride = 8; + ctx->blit_vbuf_state.vertexbuf.vb[0].buffer = ctx->blit_texcoord_vbuf; + ctx->blit_vbuf_state.vertexbuf.vb[1].stride = 12; + ctx->blit_vbuf_state.vertexbuf.vb[1].buffer = ctx->solid_vbuf; +} + +void +fd_context_cleanup_common_vbos(struct fd_context *ctx) +{ + struct pipe_context *pctx = &ctx->base; + + pctx->delete_vertex_elements_state(pctx, ctx->solid_vbuf_state.vtx); + pctx->delete_vertex_elements_state(pctx, ctx->blit_vbuf_state.vtx); + + pipe_resource_reference(&ctx->solid_vbuf, NULL); + pipe_resource_reference(&ctx->blit_texcoord_vbuf, NULL); +} + struct pipe_context * fd_context_init(struct fd_context *ctx, struct pipe_screen *pscreen, const uint8_t *primtypes, void *priv) |