forked from AuroraMiddleware/gtk
51ab56d33a
This allows us to avoid updating uniforms if that is not necessary. This in turn allows us to sometimes reuse the same draw op by just extending the vertex array size we draw rather than doing a separate glDraw call. For example, in the fishbowl demo, all the icons added at the same time will have the same time and size, so we emit single draw calls with 100s of triangles instead of 100s of draw calls with 2 triangles.
341 lines
12 KiB
C
341 lines
12 KiB
C
#ifndef __GSK_GL_RENDER_OPS_H__
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#define __GSK_GL_RENDER_OPS_H__
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#include <glib.h>
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#include <graphene.h>
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#include <gdk/gdk.h>
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#include "gskgldriverprivate.h"
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#include "gskroundedrectprivate.h"
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#include "gskglrenderer.h"
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#include "gskrendernodeprivate.h"
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#include "opbuffer.h"
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#define GL_N_VERTICES 6
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#define GL_N_PROGRAMS 14
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#define GL_MAX_GRADIENT_STOPS 6
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typedef struct
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{
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float scale_x;
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float scale_y;
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float dx_before;
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float dy_before;
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} OpsMatrixMetadata;
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typedef struct
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{
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GskTransform *transform;
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OpsMatrixMetadata metadata;
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} MatrixStackEntry;
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typedef struct
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{
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GskTransform *modelview;
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GskRoundedRect clip;
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graphene_matrix_t projection;
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int source_texture;
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graphene_rect_t viewport;
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float opacity;
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/* Per-program state */
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union {
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GdkRGBA color;
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struct {
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graphene_matrix_t matrix;
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graphene_vec4_t offset;
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} color_matrix;
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struct {
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float widths[4];
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GdkRGBA color;
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GskRoundedRect outline;
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} border;
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struct {
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GskRoundedRect outline;
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float dx;
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float dy;
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float spread;
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GdkRGBA color;
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} inset_shadow;
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struct {
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GskRoundedRect outline;
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float dx;
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float dy;
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float spread;
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GdkRGBA color;
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} unblurred_outset_shadow;
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struct {
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int n_color_stops;
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GskColorStop color_stops[GL_MAX_GRADIENT_STOPS];
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float start_point[2];
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float end_point[2];
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} linear_gradient;
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struct {
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int n_color_stops;
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GskColorStop color_stops[GL_MAX_GRADIENT_STOPS];
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float center[2];
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float start;
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float end;
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float radius[2]; /* h/v */
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} radial_gradient;
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struct {
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float width;
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float height;
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gint uniform_data_len;
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guchar uniform_data[32];
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} gl_shader;
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};
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} ProgramState;
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struct _Program
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{
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int index; /* Into the renderer's program array -1 for custom */
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int id;
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/* Common locations (gl_common)*/
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int source_location;
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int position_location;
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int uv_location;
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int alpha_location;
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int viewport_location;
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int projection_location;
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int modelview_location;
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int clip_rect_location;
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union {
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struct {
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int color_location;
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} color;
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struct {
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int color_location;
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} coloring;
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struct {
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int color_matrix_location;
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int color_offset_location;
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} color_matrix;
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struct {
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int num_color_stops_location;
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int color_stops_location;
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int start_point_location;
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int end_point_location;
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} linear_gradient;
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struct {
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int num_color_stops_location;
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int color_stops_location;
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int center_location;
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int start_location;
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int end_location;
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int radius_location;
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} radial_gradient;
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struct {
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int blur_radius_location;
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int blur_size_location;
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int blur_dir_location;
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} blur;
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struct {
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int color_location;
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int spread_location;
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int offset_location;
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int outline_rect_location;
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} inset_shadow;
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struct {
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int color_location;
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int outline_rect_location;
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} outset_shadow;
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struct {
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int outline_rect_location;
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int color_location;
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int spread_location;
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int offset_location;
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} unblurred_outset_shadow;
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struct {
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int color_location;
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int widths_location;
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int outline_rect_location;
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} border;
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struct {
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int source2_location;
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int progress_location;
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} cross_fade;
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struct {
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int source2_location;
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int mode_location;
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} blend;
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struct {
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int child_bounds_location;
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int texture_rect_location;
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} repeat;
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struct {
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int size_location;
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int args_locations[8];
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int texture_locations[4];
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GError *compile_error;
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} glshader;
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};
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ProgramState state;
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};
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typedef struct {
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int ref_count;
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union {
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Program programs[GL_N_PROGRAMS];
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struct {
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Program blend_program;
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Program blit_program;
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Program blur_program;
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Program border_program;
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Program color_matrix_program;
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Program color_program;
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Program coloring_program;
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Program cross_fade_program;
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Program inset_shadow_program;
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Program linear_gradient_program;
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Program radial_gradient_program;
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Program outset_shadow_program;
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Program repeat_program;
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Program unblurred_outset_shadow_program;
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};
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};
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GHashTable *custom_programs; /* GskGLShader -> Program* */
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} GskGLRendererPrograms;
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typedef struct
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{
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GskGLRendererPrograms *programs;
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Program *current_program;
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int current_render_target;
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int current_texture;
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graphene_matrix_t current_projection;
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graphene_rect_t current_viewport;
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float current_opacity;
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float dx, dy;
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float scale_x, scale_y;
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OpBuffer render_ops;
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GArray *vertices;
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GskGLRenderer *renderer;
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/* Stack of modelview matrices */
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GArray *mv_stack;
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GskTransform *current_modelview;
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/* Same thing */
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GArray *clip_stack;
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/* Pointer into clip_stack */
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const GskRoundedRect *current_clip;
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bool clip_is_rectilinear;
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} RenderOpBuilder;
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void ops_dump_framebuffer (RenderOpBuilder *builder,
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const char *filename,
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int width,
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int height);
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void ops_init (RenderOpBuilder *builder);
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void ops_free (RenderOpBuilder *builder);
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void ops_reset (RenderOpBuilder *builder);
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void ops_push_debug_group (RenderOpBuilder *builder,
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const char *text);
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void ops_pop_debug_group (RenderOpBuilder *builder);
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void ops_finish (RenderOpBuilder *builder);
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void ops_push_modelview (RenderOpBuilder *builder,
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GskTransform *transform);
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void ops_set_modelview (RenderOpBuilder *builder,
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GskTransform *transform);
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void ops_pop_modelview (RenderOpBuilder *builder);
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float ops_get_scale (const RenderOpBuilder *builder);
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void ops_set_program (RenderOpBuilder *builder,
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Program *program);
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void ops_push_clip (RenderOpBuilder *builder,
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const GskRoundedRect *clip);
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void ops_pop_clip (RenderOpBuilder *builder);
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gboolean ops_has_clip (RenderOpBuilder *builder);
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void ops_transform_bounds_modelview (const RenderOpBuilder *builder,
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const graphene_rect_t *src,
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graphene_rect_t *dst);
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graphene_matrix_t ops_set_projection (RenderOpBuilder *builder,
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const graphene_matrix_t *projection);
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graphene_rect_t ops_set_viewport (RenderOpBuilder *builder,
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const graphene_rect_t *viewport);
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void ops_set_texture (RenderOpBuilder *builder,
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int texture_id);
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void ops_set_extra_texture (RenderOpBuilder *builder,
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int texture_id,
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int idx);
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int ops_set_render_target (RenderOpBuilder *builder,
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int render_target_id);
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float ops_set_opacity (RenderOpBuilder *builder,
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float opacity);
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void ops_set_color (RenderOpBuilder *builder,
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const GdkRGBA *color);
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void ops_set_color_matrix (RenderOpBuilder *builder,
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const graphene_matrix_t *matrix,
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const graphene_vec4_t *offset);
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void ops_set_border (RenderOpBuilder *builder,
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const GskRoundedRect *outline);
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void ops_set_border_width (RenderOpBuilder *builder,
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const float *widths);
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void ops_set_border_color (RenderOpBuilder *builder,
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const GdkRGBA *color);
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void ops_set_inset_shadow (RenderOpBuilder *self,
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const GskRoundedRect outline,
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float spread,
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const GdkRGBA *color,
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float dx,
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float dy);
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void ops_set_gl_shader_args (RenderOpBuilder *builder,
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GskGLShader *shader,
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float width,
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float height,
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const guchar *uniform_data);
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void ops_set_unblurred_outset_shadow (RenderOpBuilder *self,
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const GskRoundedRect outline,
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float spread,
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const GdkRGBA *color,
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float dx,
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float dy);
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void ops_set_linear_gradient (RenderOpBuilder *self,
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guint n_color_stops,
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const GskColorStop *color_stops,
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float start_x,
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float start_y,
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float end_x,
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float end_y);
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void ops_set_radial_gradient (RenderOpBuilder *self,
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guint n_color_stops,
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const GskColorStop *color_stops,
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float center_x,
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float center_y,
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float start,
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float end,
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float hradius,
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float vradius);
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GskQuadVertex * ops_draw (RenderOpBuilder *builder,
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const GskQuadVertex vertex_data[GL_N_VERTICES]);
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void ops_offset (RenderOpBuilder *builder,
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float x,
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float y);
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gpointer ops_begin (RenderOpBuilder *builder,
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OpKind kind);
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OpBuffer *ops_get_buffer (RenderOpBuilder *builder);
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#endif
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