From 36c93a6fae275614b6004ec5ab085774d527e1bc Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sun, 6 Dec 2015 13:36:57 +0100 Subject: [PATCH] st/mesa: fix GLSL uniform updates for glBitmap & glDrawPixels (v2) Spotted by luck. The GLSL uniform storage is only associated once in LinkShader and can't be reallocated afterwards, because that would break the association. v2: don't remove st_upload_constants calls, clarify why they're needed Cc: 11.0 11.1 --- src/mesa/state_tracker/st_cb_bitmap.c | 6 +++++- src/mesa/state_tracker/st_cb_drawpixels.c | 14 ++++++++++---- src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 6 ++++++ src/mesa/state_tracker/st_program.c | 17 ++++------------- src/mesa/state_tracker/st_program.h | 1 - 5 files changed, 25 insertions(+), 19 deletions(-) diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c index cbc6845d771..a4a48a616fd 100644 --- a/src/mesa/state_tracker/st_cb_bitmap.c +++ b/src/mesa/state_tracker/st_cb_bitmap.c @@ -287,7 +287,8 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, GLfloat colorSave[4]; COPY_4V(colorSave, ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], color); - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + st_upload_constants(st, st->fp->Base.Base.Parameters, + PIPE_SHADER_FRAGMENT); COPY_4V(ctx->Current.Attrib[VERT_ATTRIB_COLOR0], colorSave); } @@ -404,6 +405,9 @@ draw_bitmap_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z, cso_restore_stream_outputs(cso); pipe_resource_reference(&vbuf, NULL); + + /* We uploaded modified constants, need to invalidate them. */ + st->dirty.mesa |= _NEW_PROGRAM_CONSTANTS; } diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c index 262ad809c58..a125d1f149e 100644 --- a/src/mesa/state_tracker/st_cb_drawpixels.c +++ b/src/mesa/state_tracker/st_cb_drawpixels.c @@ -1110,8 +1110,11 @@ st_DrawPixels(struct gl_context *ctx, GLint x, GLint y, num_sampler_view++; } - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + /* compiling a new fragment shader variant added new state constants + * into the constant buffer, we need to update them + */ + st_upload_constants(st, st->fp->Base.Base.Parameters, + PIPE_SHADER_FRAGMENT); } /* Put glDrawPixels image into a texture */ @@ -1463,8 +1466,11 @@ st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy, num_sampler_view++; } - /* update fragment program constants */ - st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT); + /* compiling a new fragment shader variant added new state constants + * into the constant buffer, we need to update them + */ + st_upload_constants(st, st->fp->Base.Base.Parameters, + PIPE_SHADER_FRAGMENT); } else { assert(type == GL_DEPTH); diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index ad3a6846558..cdbe2f4f8a8 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -5688,6 +5688,12 @@ get_mesa_program(struct gl_context *ctx, _mesa_reference_program(ctx, &shader->Program, prog); + /* Avoid reallocation of the program parameter list, because the uniform + * storage is only associated with the original parameter list. + * This should be enough for Bitmap and DrawPixels constants. + */ + _mesa_reserve_parameter_storage(prog->Parameters, 8); + /* This has to be done last. Any operation the can cause * prog->ParameterValues to get reallocated (e.g., anything that adds a * program constant) has to happen before creating this linkage. diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c index 75ccaf2f26b..39c54c256e0 100644 --- a/src/mesa/state_tracker/st_program.c +++ b/src/mesa/state_tracker/st_program.c @@ -112,8 +112,6 @@ delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv) { if (fpv->driver_shader) cso_delete_fragment_shader(st->cso_context, fpv->driver_shader); - if (fpv->parameters) - _mesa_free_parameter_list(fpv->parameters); free(fpv); } @@ -914,8 +912,6 @@ st_create_fp_variant(struct st_context *st, if (tgsi.tokens != stfp->tgsi.tokens) tgsi_free_tokens(tgsi.tokens); tgsi.tokens = tokens; - variant->parameters = - _mesa_clone_parameter_list(stfp->Base.Base.Parameters); } else fprintf(stderr, "mesa: cannot create a shader for glBitmap\n"); } @@ -924,6 +920,7 @@ st_create_fp_variant(struct st_context *st, if (key->drawpixels) { const struct tgsi_token *tokens; unsigned scale_const = 0, bias_const = 0, texcoord_const = 0; + struct gl_program_parameter_list *params = stfp->Base.Base.Parameters; /* Find the first unused slot. */ variant->drawpix_sampler = ffs(~stfp->Base.Base.SamplersUsed) - 1; @@ -935,27 +932,21 @@ st_create_fp_variant(struct st_context *st, variant->pixelmap_sampler = ffs(~samplers_used) - 1; } - variant->parameters = - _mesa_clone_parameter_list(stfp->Base.Base.Parameters); - if (key->scaleAndBias) { static const gl_state_index scale_state[STATE_LENGTH] = { STATE_INTERNAL, STATE_PT_SCALE }; static const gl_state_index bias_state[STATE_LENGTH] = { STATE_INTERNAL, STATE_PT_BIAS }; - scale_const = _mesa_add_state_reference(variant->parameters, - scale_state); - bias_const = _mesa_add_state_reference(variant->parameters, - bias_state); + scale_const = _mesa_add_state_reference(params, scale_state); + bias_const = _mesa_add_state_reference(params, bias_state); } { static const gl_state_index state[STATE_LENGTH] = { STATE_INTERNAL, STATE_CURRENT_ATTRIB, VERT_ATTRIB_TEX0 }; - texcoord_const = _mesa_add_state_reference(variant->parameters, - state); + texcoord_const = _mesa_add_state_reference(params, state); } tokens = st_get_drawpix_shader(tgsi.tokens, diff --git a/src/mesa/state_tracker/st_program.h b/src/mesa/state_tracker/st_program.h index d9b53ac008c..a8571f0c441 100644 --- a/src/mesa/state_tracker/st_program.h +++ b/src/mesa/state_tracker/st_program.h @@ -80,7 +80,6 @@ struct st_fp_variant void *driver_shader; /** For glBitmap variants */ - struct gl_program_parameter_list *parameters; uint bitmap_sampler; /** For glDrawPixels variants */ -- 2.30.2