From 296378b6c8b205048244746e260739448c4ee590 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 6 May 2008 13:47:41 -0600 Subject: gallium: create drawing surfaces as GPU_READ/WRITE only Create different temporary surfaces for CPU_READ/WRITE when needed (such as for glReadPixels, glAccum, some glCopy/DrawPixels, glCopyTexSubImage, etc). --- src/mesa/state_tracker/st_cb_accum.c | 73 ++++++++++++++++++++++++++---------- 1 file changed, 53 insertions(+), 20 deletions(-) (limited to 'src/mesa/state_tracker/st_cb_accum.c') diff --git a/src/mesa/state_tracker/st_cb_accum.c b/src/mesa/state_tracker/st_cb_accum.c index e4ef3e16b7..8098d75e18 100644 --- a/src/mesa/state_tracker/st_cb_accum.c +++ b/src/mesa/state_tracker/st_cb_accum.c @@ -105,7 +105,7 @@ void st_clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) { struct st_renderbuffer *acc_strb = st_renderbuffer(rb); - struct pipe_surface *acc_ps = acc_strb->surface; + struct pipe_surface *acc_ps; struct pipe_screen *screen = ctx->st->pipe->screen; const GLint xpos = ctx->DrawBuffer->_Xmin; const GLint ypos = ctx->DrawBuffer->_Ymin; @@ -113,6 +113,8 @@ st_clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) const GLint height = ctx->DrawBuffer->_Ymax - ypos; GLvoid *map; + acc_ps = screen->get_tex_surface(screen, acc_strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_WRITE); map = screen->surface_map(screen, acc_ps, PIPE_BUFFER_USAGE_CPU_WRITE); @@ -143,6 +145,7 @@ st_clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb) } screen->surface_unmap(screen, acc_ps); + pipe_surface_reference(&acc_ps, NULL); } @@ -185,70 +188,100 @@ accum_mad(GLcontext *ctx, GLfloat scale, GLfloat bias, static void accum_accum(struct pipe_context *pipe, GLfloat value, GLint xpos, GLint ypos, GLint width, GLint height, - struct pipe_surface *acc_ps, - struct pipe_surface *color_ps) + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) { + struct pipe_screen *screen = pipe->screen; + struct pipe_surface *acc_surf, *color_surf; GLfloat *colorBuf, *accBuf; GLint i; + acc_surf = screen->get_tex_surface(screen, acc_strb->texture, 0, 0, 0, + (PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_CPU_READ)); + + color_surf = screen->get_tex_surface(screen, color_strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_READ); + colorBuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); accBuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - pipe_get_tile_rgba(pipe, color_ps, xpos, ypos, width, height, colorBuf); - acc_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf); + pipe_get_tile_rgba(pipe, color_surf, xpos, ypos, width, height, colorBuf); + acc_get_tile_rgba(pipe, acc_surf, xpos, ypos, width, height, accBuf); for (i = 0; i < 4 * width * height; i++) { accBuf[i] = accBuf[i] + colorBuf[i] * value; } - acc_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf); + acc_put_tile_rgba(pipe, acc_surf, xpos, ypos, width, height, accBuf); free(colorBuf); free(accBuf); + pipe_surface_reference(&acc_surf, NULL); + pipe_surface_reference(&color_surf, NULL); } static void accum_load(struct pipe_context *pipe, GLfloat value, GLint xpos, GLint ypos, GLint width, GLint height, - struct pipe_surface *acc_ps, - struct pipe_surface *color_ps) + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) { + struct pipe_screen *screen = pipe->screen; + struct pipe_surface *acc_surf, *color_surf; GLfloat *buf; GLint i; + acc_surf = screen->get_tex_surface(screen, acc_strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_WRITE); + + color_surf = screen->get_tex_surface(screen, color_strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_READ); + buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - pipe_get_tile_rgba(pipe, color_ps, xpos, ypos, width, height, buf); + pipe_get_tile_rgba(pipe, color_surf, xpos, ypos, width, height, buf); for (i = 0; i < 4 * width * height; i++) { buf[i] = buf[i] * value; } - acc_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, buf); + acc_put_tile_rgba(pipe, acc_surf, xpos, ypos, width, height, buf); free(buf); + pipe_surface_reference(&acc_surf, NULL); + pipe_surface_reference(&color_surf, NULL); } static void accum_return(GLcontext *ctx, GLfloat value, GLint xpos, GLint ypos, GLint width, GLint height, - struct pipe_surface *acc_ps, - struct pipe_surface *color_ps) + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) { struct pipe_context *pipe = ctx->st->pipe; + struct pipe_screen *screen = pipe->screen; const GLubyte *colormask = ctx->Color.ColorMask; + struct pipe_surface *acc_surf, *color_surf; GLfloat *abuf, *cbuf = NULL; GLint i, ch; abuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - acc_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, abuf); + acc_surf = screen->get_tex_surface(screen, acc_strb->texture, 0, 0, 0, + PIPE_BUFFER_USAGE_CPU_READ); + + color_surf = screen->get_tex_surface(screen, color_strb->texture, 0, 0, 0, + (PIPE_BUFFER_USAGE_CPU_READ | + PIPE_BUFFER_USAGE_CPU_WRITE)); + + acc_get_tile_rgba(pipe, acc_surf, xpos, ypos, width, height, abuf); if (!colormask[0] || !colormask[1] || !colormask[2] || !colormask[3]) { cbuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); - pipe_get_tile_rgba(pipe, color_ps, xpos, ypos, width, height, cbuf); + pipe_get_tile_rgba(pipe, color_surf, xpos, ypos, width, height, cbuf); } for (i = 0; i < width * height; i++) { @@ -263,11 +296,13 @@ accum_return(GLcontext *ctx, GLfloat value, } } - pipe_put_tile_rgba(pipe, color_ps, xpos, ypos, width, height, abuf); + pipe_put_tile_rgba(pipe, color_surf, xpos, ypos, width, height, abuf); free(abuf); if (cbuf) free(cbuf); + pipe_surface_reference(&acc_surf, NULL); + pipe_surface_reference(&color_surf, NULL); } @@ -280,8 +315,6 @@ st_Accum(GLcontext *ctx, GLenum op, GLfloat value) = st_renderbuffer(ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer); struct st_renderbuffer *color_strb = st_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer); - struct pipe_surface *acc_ps = acc_strb->surface; - struct pipe_surface *color_ps = color_strb->surface; const GLint xpos = ctx->DrawBuffer->_Xmin; const GLint ypos = ctx->DrawBuffer->_Ymin; @@ -304,14 +337,14 @@ st_Accum(GLcontext *ctx, GLenum op, GLfloat value) break; case GL_ACCUM: if (value != 0.0F) { - accum_accum(pipe, value, xpos, ypos, width, height, acc_ps, color_ps); + accum_accum(pipe, value, xpos, ypos, width, height, acc_strb, color_strb); } break; case GL_LOAD: - accum_load(pipe, value, xpos, ypos, width, height, acc_ps, color_ps); + accum_load(pipe, value, xpos, ypos, width, height, acc_strb, color_strb); break; case GL_RETURN: - accum_return(ctx, value, xpos, ypos, width, height, acc_ps, color_ps); + accum_return(ctx, value, xpos, ypos, width, height, acc_strb, color_strb); break; default: assert(0); -- cgit v1.2.3