[gtk+/wip/baedert/gl: 148/177] gl renderer: Factor out a helper function for offscreen drawing
- From: Timm Bäder <baedert src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk+/wip/baedert/gl: 148/177] gl renderer: Factor out a helper function for offscreen drawing
- Date: Tue, 5 Dec 2017 12:54:55 +0000 (UTC)
commit 0f48854ca65f0cac77b7ac32a401513b1b84b736
Author: Timm Bäder <mail baedert org>
Date: Fri Nov 24 10:18:51 2017 +0100
gl renderer: Factor out a helper function for offscreen drawing
gsk/gl/gskglrenderer.c | 100 +++++++++++++++++++++++++++++------------------
1 files changed, 62 insertions(+), 38 deletions(-)
---
diff --git a/gsk/gl/gskglrenderer.c b/gsk/gl/gskglrenderer.c
index c153219..66dcfeb 100644
--- a/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@ -76,8 +76,14 @@ font_has_color_glyphs (const PangoFont *font)
return has_color;
}
-static void
-gsk_gl_renderer_setup_render_mode (GskGLRenderer *self);
+static void gsk_gl_renderer_setup_render_mode (GskGLRenderer *self);
+static int add_offscreen_ops (GskGLRenderer *self,
+ RenderOpBuilder *builder,
+ float min_x,
+ float max_x,
+ float min_y,
+ float max_y,
+ GskRenderNode *child_node);
#ifdef G_ENABLE_DEBUG
typedef struct
@@ -712,15 +718,8 @@ gsk_gl_renderer_add_render_ops (GskGLRenderer *self,
case GSK_OPACITY_NODE:
{
- int render_target;
int texture_id;
- int prev_render_target;
float prev_opacity;
- graphene_matrix_t identity;
- graphene_matrix_t prev_projection;
- graphene_matrix_t prev_modelview;
- graphene_rect_t prev_viewport;
- graphene_matrix_t item_proj;
GskQuadVertex vertex_data[GL_N_VERTICES] = {
{ { min_x, min_y }, { 0, 1 }, },
{ { min_x, max_y }, { 0, 0 }, },
@@ -731,35 +730,8 @@ gsk_gl_renderer_add_render_ops (GskGLRenderer *self,
{ { max_x, min_y }, { 1, 1 }, },
};
- texture_id = gsk_gl_driver_create_texture (self->gl_driver, max_x - min_x, max_y - min_y);
- gsk_gl_driver_bind_source_texture (self->gl_driver, texture_id);
- gsk_gl_driver_init_texture_empty (self->gl_driver, texture_id);
- render_target = gsk_gl_driver_create_render_target (self->gl_driver, texture_id, TRUE, TRUE);
-
- /* Clear the framebuffer now, once */
- RenderOp op;
- op.op = OP_CLEAR;
-
- graphene_matrix_init_ortho (&item_proj,
- min_x, max_x,
- min_y, max_y,
- ORTHO_NEAR_PLANE, ORTHO_FAR_PLANE);
- graphene_matrix_scale (&item_proj, 1, -1, 1);
- graphene_matrix_init_identity (&identity);
-
- prev_render_target = ops_set_render_target (builder, render_target);
- /* Clear since we use this rendertarget for the first time */
- ops_add (builder, &op);
- prev_projection = ops_set_projection (builder, &item_proj);
- prev_modelview = ops_set_modelview (builder, &identity);
- prev_viewport = ops_set_viewport (builder, &node->bounds);
-
- gsk_gl_renderer_add_render_ops (self, gsk_opacity_node_get_child (node), builder);
-
- ops_set_viewport (builder, &prev_viewport);
- ops_set_modelview (builder, &prev_modelview);
- ops_set_projection (builder, &prev_projection);
- ops_set_render_target (builder, prev_render_target);
+ texture_id = add_offscreen_ops (self, builder, min_x, max_x, min_y, max_y,
+ gsk_opacity_node_get_child (node));
/* Now draw the texture with the node's opacity */
ops_set_program (builder, &self->blit_program);
@@ -995,6 +967,58 @@ gsk_gl_renderer_add_render_ops (GskGLRenderer *self,
}
}
+static int
+add_offscreen_ops (GskGLRenderer *self,
+ RenderOpBuilder *builder,
+ float min_x,
+ float max_x,
+ float min_y,
+ float max_y,
+ GskRenderNode *child_node)
+{
+ int texture_id;
+ int render_target;
+ int prev_render_target;
+ RenderOp op;
+ graphene_matrix_t identity;
+ graphene_matrix_t prev_projection;
+ graphene_matrix_t prev_modelview;
+ graphene_rect_t prev_viewport;
+ graphene_matrix_t item_proj;
+
+
+ texture_id = gsk_gl_driver_create_texture (self->gl_driver, max_x - min_x, max_y - min_y);
+ gsk_gl_driver_bind_source_texture (self->gl_driver, texture_id);
+ gsk_gl_driver_init_texture_empty (self->gl_driver, texture_id);
+ render_target = gsk_gl_driver_create_render_target (self->gl_driver, texture_id, TRUE, TRUE);
+
+ graphene_matrix_init_ortho (&item_proj,
+ min_x, max_x,
+ min_y, max_y,
+ ORTHO_NEAR_PLANE, ORTHO_FAR_PLANE);
+ graphene_matrix_scale (&item_proj, 1, -1, 1);
+ graphene_matrix_init_identity (&identity);
+
+ prev_render_target = ops_set_render_target (builder, render_target);
+ /* Clear since we use this rendertarget for the first time */
+ op.op = OP_CLEAR;
+ ops_add (builder, &op);
+ prev_projection = ops_set_projection (builder, &item_proj);
+ prev_modelview = ops_set_modelview (builder, &identity);
+ prev_viewport = ops_set_viewport (builder, &GRAPHENE_RECT_INIT (min_x, min_y, max_x - min_x, max_y -
min_y));
+
+ gsk_gl_renderer_add_render_ops (self, child_node, builder);
+
+ ops_set_viewport (builder, &prev_viewport);
+ ops_set_modelview (builder, &prev_modelview);
+ ops_set_projection (builder, &prev_projection);
+ ops_set_render_target (builder, prev_render_target);
+
+ return texture_id;
+}
+
+
+
static void
gsk_gl_renderer_render_ops (GskGLRenderer *self,
gsize vertex_data_size)
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