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gallium/cso: add support for tessellation shaders

Browse source 
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Marek Olšák 2015-03-02 16:32:25 +01:00
parent 267ad27ab6
commit 2a7da1bddb
2 changed files with 105 additions and 0 deletions
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93
src/gallium/auxiliary/cso_cache/cso_context.c
View file

@ -82,6 +82,7 @@ struct cso_context {
struct u_vbuf *vbuf;
boolean has_geometry_shader;
boolean has_tessellation;
boolean has_streamout;
struct sampler_info samplers[PIPE_SHADER_TYPES];
@ -108,6 +109,8 @@ struct cso_context {
void *fragment_shader, *fragment_shader_saved;
void *vertex_shader, *vertex_shader_saved;
void *geometry_shader, *geometry_shader_saved;
void *tessctrl_shader, *tessctrl_shader_saved;
void *tesseval_shader, *tesseval_shader_saved;
void *velements, *velements_saved;
struct pipe_query *render_condition, *render_condition_saved;
uint render_condition_mode, render_condition_mode_saved;
@ -273,6 +276,10 @@ struct cso_context *cso_create_context( struct pipe_context *pipe )
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
ctx->has_geometry_shader = TRUE;
}
if (pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_TESS_CTRL,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
ctx->has_tessellation = TRUE;
}
if (pipe->screen->get_param(pipe->screen,
PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0) {
ctx->has_streamout = TRUE;
@ -812,6 +819,92 @@ void cso_restore_geometry_shader(struct cso_context *ctx)
ctx->geometry_shader_saved = NULL;
}
void cso_set_tessctrl_shader_handle(struct cso_context *ctx, void *handle)
{
assert(ctx->has_tessellation || !handle);
if (ctx->has_tessellation && ctx->tessctrl_shader != handle) {
ctx->tessctrl_shader = handle;
ctx->pipe->bind_tcs_state(ctx->pipe, handle);
}
}
void cso_delete_tessctrl_shader(struct cso_context *ctx, void *handle)
{
if (handle == ctx->tessctrl_shader) {
/* unbind before deleting */
ctx->pipe->bind_tcs_state(ctx->pipe, NULL);
ctx->tessctrl_shader = NULL;
}
ctx->pipe->delete_tcs_state(ctx->pipe, handle);
}
void cso_save_tessctrl_shader(struct cso_context *ctx)
{
if (!ctx->has_tessellation) {
return;
}
assert(!ctx->tessctrl_shader_saved);
ctx->tessctrl_shader_saved = ctx->tessctrl_shader;
}
void cso_restore_tessctrl_shader(struct cso_context *ctx)
{
if (!ctx->has_tessellation) {
return;
}
if (ctx->tessctrl_shader_saved != ctx->tessctrl_shader) {
ctx->pipe->bind_tcs_state(ctx->pipe, ctx->tessctrl_shader_saved);
ctx->tessctrl_shader = ctx->tessctrl_shader_saved;
}
ctx->tessctrl_shader_saved = NULL;
}
void cso_set_tesseval_shader_handle(struct cso_context *ctx, void *handle)
{
assert(ctx->has_tessellation || !handle);
if (ctx->has_tessellation && ctx->tesseval_shader != handle) {
ctx->tesseval_shader = handle;
ctx->pipe->bind_tes_state(ctx->pipe, handle);
}
}
void cso_delete_tesseval_shader(struct cso_context *ctx, void *handle)
{
if (handle == ctx->tesseval_shader) {
/* unbind before deleting */
ctx->pipe->bind_tes_state(ctx->pipe, NULL);
ctx->tesseval_shader = NULL;
}
ctx->pipe->delete_tes_state(ctx->pipe, handle);
}
void cso_save_tesseval_shader(struct cso_context *ctx)
{
if (!ctx->has_tessellation) {
return;
}
assert(!ctx->tesseval_shader_saved);
ctx->tesseval_shader_saved = ctx->tesseval_shader;
}
void cso_restore_tesseval_shader(struct cso_context *ctx)
{
if (!ctx->has_tessellation) {
return;
}
if (ctx->tesseval_shader_saved != ctx->tesseval_shader) {
ctx->pipe->bind_tes_state(ctx->pipe, ctx->tesseval_shader_saved);
ctx->tesseval_shader = ctx->tesseval_shader_saved;
}
ctx->tesseval_shader_saved = NULL;
}
/* clip state */
static INLINE void

12
src/gallium/auxiliary/cso_cache/cso_context.h
View file

@ -141,6 +141,18 @@ void cso_save_geometry_shader(struct cso_context *cso);
void cso_restore_geometry_shader(struct cso_context *cso);
void cso_set_tessctrl_shader_handle(struct cso_context *ctx, void *handle);
void cso_delete_tessctrl_shader(struct cso_context *ctx, void *handle);
void cso_save_tessctrl_shader(struct cso_context *cso);
void cso_restore_tessctrl_shader(struct cso_context *cso);
void cso_set_tesseval_shader_handle(struct cso_context *ctx, void *handle);
void cso_delete_tesseval_shader(struct cso_context *ctx, void *handle);
void cso_save_tesseval_shader(struct cso_context *cso);
void cso_restore_tesseval_shader(struct cso_context *cso);
void cso_set_framebuffer(struct cso_context *cso,
const struct pipe_framebuffer_state *fb);
void cso_save_framebuffer(struct cso_context *cso);