--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "vg_context.h"
+#include "vg_tracker.h"
+#include "mask.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_screen.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+static struct pipe_texture *
+create_texture(struct pipe_context *pipe, enum pipe_format format,
+ VGint width, VGint height)
+{
+ struct pipe_texture templ;
+
+ memset(&templ, 0, sizeof(templ));
+
+ if (format != PIPE_FORMAT_NONE) {
+ templ.format = format;
+ }
+ else {
+ templ.format = PIPE_FORMAT_A8R8G8B8_UNORM;
+ }
+
+ templ.target = PIPE_TEXTURE_2D;
+ pf_get_block(templ.format, &templ.block);
+ templ.width[0] = width;
+ templ.height[0] = height;
+ templ.depth[0] = 1;
+ templ.last_level = 0;
+
+ if (pf_get_component_bits(format, PIPE_FORMAT_COMP_S)) {
+ templ.tex_usage = PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
+ } else {
+ templ.tex_usage = (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
+ PIPE_TEXTURE_USAGE_RENDER_TARGET |
+ PIPE_TEXTURE_USAGE_SAMPLER);
+ }
+
+ return pipe->screen->texture_create(pipe->screen, &templ);
+}
+
+/**
+ * Allocate a renderbuffer for a an on-screen window (not a user-created
+ * renderbuffer). The window system code determines the format.
+ */
+static struct st_renderbuffer *
+st_new_renderbuffer_fb(enum pipe_format format)
+{
+ struct st_renderbuffer *strb;
+
+ strb = CALLOC_STRUCT(st_renderbuffer);
+ if (!strb) {
+ /*_vega_error(NULL, VG_OUT_OF_MEMORY, "creating renderbuffer");*/
+ return NULL;
+ }
+
+ strb->format = format;
+
+ return strb;
+}
+
+
+/**
+ * This is called to allocate the original drawing surface, and
+ * during window resize.
+ */
+static VGboolean
+st_renderbuffer_alloc_storage(struct vg_context * ctx,
+ struct st_renderbuffer *strb,
+ VGuint width, VGuint height)
+{
+ struct pipe_context *pipe = ctx->pipe;
+ unsigned surface_usage;
+
+ /* Free the old surface and texture
+ */
+ pipe_surface_reference(&strb->surface, NULL);
+ pipe_texture_reference(&strb->texture, NULL);
+
+
+ /* Probably need dedicated flags for surface usage too:
+ */
+ surface_usage = (PIPE_BUFFER_USAGE_GPU_READ |
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ strb->texture = create_texture(pipe, strb->format,
+ width, height);
+
+ if (!strb->texture)
+ return FALSE;
+
+ strb->surface = pipe->screen->get_tex_surface(pipe->screen,
+ strb->texture,
+ 0, 0, 0,
+ surface_usage);
+ strb->width = width;
+ strb->height = height;
+
+ assert(strb->surface->width == width);
+ assert(strb->surface->height == height);
+
+ return strb->surface != NULL;
+}
+
+struct vg_context * st_create_context(struct pipe_context *pipe,
+ const void *visual,
+ struct vg_context *share)
+{
+ struct vg_context *ctx = vg_create_context(pipe, visual, share);
+ /*debug_printf("--------- CREATE CONTEXT %p\n", ctx);*/
+ return ctx;
+}
+
+void st_destroy_context(struct vg_context *st)
+{
+ /*debug_printf("--------- DESTROY CONTEXT %p\n", st);*/
+ vg_destroy_context(st);
+}
+
+void st_copy_context_state(struct vg_context *dst, struct vg_context *src,
+ uint mask)
+{
+ fprintf(stderr, "FIXME: %s\n", __FUNCTION__);
+}
+
+void st_get_framebuffer_dimensions(struct st_framebuffer *stfb,
+ uint *width,
+ uint *height)
+{
+ *width = stfb->strb->width;
+ *height = stfb->strb->height;
+}
+
+struct st_framebuffer * st_create_framebuffer(const void *visual,
+ enum pipe_format colorFormat,
+ enum pipe_format depthFormat,
+ enum pipe_format stencilFormat,
+ uint width, uint height,
+ void *privateData)
+{
+ struct st_framebuffer *stfb = CALLOC_STRUCT(st_framebuffer);
+ if (stfb) {
+ struct st_renderbuffer *rb =
+ st_new_renderbuffer_fb(colorFormat);
+ stfb->strb = rb;
+#if 0
+ if (doubleBuffer) {
+ struct st_renderbuffer *rb =
+ st_new_renderbuffer_fb(colorFormat);
+ }
+#endif
+
+ /* we want to combine the depth/stencil */
+ if (stencilFormat == depthFormat)
+ stfb->dsrb = st_new_renderbuffer_fb(stencilFormat);
+ else
+ stfb->dsrb = st_new_renderbuffer_fb(PIPE_FORMAT_S8Z24_UNORM);
+
+ /*### currently we always allocate it but it's possible it's
+ not necessary if EGL_ALPHA_MASK_SIZE was 0
+ */
+ stfb->alpha_mask = 0;
+
+ stfb->init_width = width;
+ stfb->init_height = height;
+ stfb->privateData = privateData;
+ }
+
+ return stfb;
+}
+
+static void setup_new_alpha_mask(struct vg_context *ctx,
+ struct st_framebuffer *stfb,
+ uint width, uint height)
+{
+ struct pipe_context *pipe = ctx->pipe;
+ struct pipe_texture *old_texture = stfb->alpha_mask;
+
+ /*
+ we use PIPE_FORMAT_A8R8G8B8_UNORM because we want to render to
+ this texture and use it as a sampler, so while this wastes some
+ space it makes both of those a lot simpler
+ */
+ stfb->alpha_mask =
+ create_texture(pipe, PIPE_FORMAT_A8R8G8B8_UNORM, width, height);
+
+ if (!stfb->alpha_mask) {
+ if (old_texture)
+ pipe_texture_reference(&old_texture, NULL);
+ return;
+ }
+
+ vg_validate_state(ctx);
+
+ /* alpha mask starts with 1.f alpha */
+ mask_fill(0, 0, width, height, 1.f);
+
+ /* if we had an old surface copy it over */
+ if (old_texture) {
+ struct pipe_surface *surface = pipe->screen->get_tex_surface(
+ pipe->screen,
+ stfb->alpha_mask,
+ 0, 0, 0,
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+ struct pipe_surface *old_surface = pipe->screen->get_tex_surface(
+ pipe->screen,
+ old_texture,
+ 0, 0, 0,
+ PIPE_BUFFER_USAGE_GPU_READ);
+ pipe->surface_copy(pipe,
+ surface,
+ 0, 0,
+ old_surface,
+ 0, 0,
+ MIN2(old_surface->width, width),
+ MIN2(old_surface->height, height));
+ if (surface)
+ pipe_surface_reference(&surface, NULL);
+ if (old_surface)
+ pipe_surface_reference(&old_surface, NULL);
+ }
+
+ /* Free the old texture
+ */
+ if (old_texture)
+ pipe_texture_reference(&old_texture, NULL);
+}
+
+void st_resize_framebuffer(struct st_framebuffer *stfb,
+ uint width, uint height)
+{
+ struct vg_context *ctx = vg_current_context();
+ struct st_renderbuffer *strb = stfb->strb;
+ struct pipe_framebuffer_state *state;
+
+ if (!ctx)
+ return;
+
+ state = &ctx->state.g3d.fb;
+
+ /* If this is a noop, exit early and don't do the clear, etc below.
+ */
+ if (strb->width == width &&
+ strb->height == height &&
+ state->zsbuf)
+ return;
+
+ if (strb->width != width || strb->height != height)
+ st_renderbuffer_alloc_storage(ctx, strb,
+ width, height);
+
+ if (stfb->dsrb->width != width || stfb->dsrb->height != height)
+ st_renderbuffer_alloc_storage(ctx, stfb->dsrb,
+ width, height);
+
+ {
+ VGuint i;
+
+ memset(state, 0, sizeof(struct pipe_framebuffer_state));
+
+ state->width = width;
+ state->height = height;
+
+ state->nr_cbufs = 1;
+ state->cbufs[0] = strb->surface;
+ for (i = 1; i < PIPE_MAX_COLOR_BUFS; ++i)
+ state->cbufs[i] = 0;
+
+ state->zsbuf = stfb->dsrb->surface;
+
+ cso_set_framebuffer(ctx->cso_context, state);
+ }
+
+ ctx->state.dirty |= VIEWPORT_DIRTY;
+ ctx->state.dirty |= DEPTH_STENCIL_DIRTY;/*to reset the scissors*/
+
+ ctx->pipe->clear(ctx->pipe, PIPE_CLEAR_DEPTHSTENCIL,
+ NULL, 0.0, 0);
+
+ /* we need all the other state already set */
+
+ setup_new_alpha_mask(ctx, stfb, width, height);
+
+ pipe_texture_reference( &stfb->blend_texture, NULL );
+ stfb->blend_texture = create_texture(ctx->pipe, PIPE_FORMAT_A8R8G8B8_UNORM,
+ width, height);
+}
+
+void st_set_framebuffer_surface(struct st_framebuffer *stfb,
+ uint surfIndex, struct pipe_surface *surf)
+{
+ struct st_renderbuffer *rb = stfb->strb;
+
+ /* unreference existing surfaces */
+ pipe_surface_reference( &rb->surface, NULL );
+ pipe_texture_reference( &rb->texture, NULL );
+
+ /* reference new ones */
+ pipe_surface_reference( &rb->surface, surf );
+ pipe_texture_reference( &rb->texture, surf->texture );
+
+ rb->width = surf->width;
+ rb->height = surf->height;
+}
+
+int st_get_framebuffer_surface(struct st_framebuffer *stfb,
+ uint surfIndex, struct pipe_surface **surf)
+{
+ struct st_renderbuffer *rb = stfb->strb;
+ *surf = rb->surface;
+ return VG_TRUE;
+}
+
+int st_get_framebuffer_texture(struct st_framebuffer *stfb,
+ uint surfIndex, struct pipe_texture **tex)
+{
+ struct st_renderbuffer *rb = stfb->strb;
+ *tex = rb->texture;
+ return VG_TRUE;
+}
+
+void * st_framebuffer_private(struct st_framebuffer *stfb)
+{
+ return stfb->privateData;
+}
+
+void st_unreference_framebuffer(struct st_framebuffer *stfb)
+{
+ /* FIXME */
+}
+
+void st_make_current(struct vg_context *st,
+ struct st_framebuffer *draw,
+ struct st_framebuffer *read)
+{
+ vg_set_current_context(st);
+ if (st) {
+ st->draw_buffer = draw;
+ }
+}
+
+void st_flush(struct vg_context *st, uint pipeFlushFlags,
+ struct pipe_fence_handle **fence)
+{
+ st->pipe->flush(st->pipe, pipeFlushFlags, fence);
+}
+
+void st_finish(struct vg_context *st)
+{
+ struct pipe_fence_handle *fence = NULL;
+
+ st_flush(st, PIPE_FLUSH_RENDER_CACHE, &fence);
+
+ st->pipe->screen->fence_finish(st->pipe->screen, fence, 0);
+ st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
+}
+
+void st_notify_swapbuffers(struct st_framebuffer *stfb)
+{
+ struct vg_context *ctx = vg_current_context();
+ if (ctx && ctx->draw_buffer == stfb) {
+ st_flush(ctx,
+ PIPE_FLUSH_RENDER_CACHE |
+ PIPE_FLUSH_SWAPBUFFERS |
+ PIPE_FLUSH_FRAME,
+ NULL);
+ }
+}
+
+void st_notify_swapbuffers_complete(struct st_framebuffer *stfb)
+{
+}
+
+int
+st_set_teximage(struct pipe_texture *pt, int target)
+{
+ return 0;
+}
projects / mesa.git / blobdiff