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gpu: Make blend modes configurable

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For now, we only have OVER and ADD blend modes. This commit doesn't use
ADD, it just sets up all the machinery and refactors things.
This commit is contained in:
Benjamin Otte 2023-12-25 05:21:13 +01:00
parent a031011e5e
commit 5cf3c70db0
13 changed files with 190 additions and 26 deletions
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4
gsk/gpu/gskglframe.c
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@ -146,11 +146,7 @@ gsk_gl_frame_submit (GskGpuFrame *frame,
glEnable (GL_DEPTH_TEST);
glDepthFunc (GL_LEQUAL);
/* Pre-multiplied alpha */
glEnable (GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glBlendEquation (GL_FUNC_ADD);
if (vertex_buffer)
gsk_gl_buffer_bind (GSK_GL_BUFFER (vertex_buffer));

103
gsk/gpu/gskgpublendop.c Normal file
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@ -0,0 +1,103 @@
#include "config.h"
#include "gskgpublendopprivate.h"
#include "gskgpuopprivate.h"
#include "gskgpuprintprivate.h"
typedef struct _GskGpuBlendOp GskGpuBlendOp;
struct _GskGpuBlendOp
{
GskGpuOp op;
GskGpuBlend blend;
};
static void
gsk_gpu_blend_op_finish (GskGpuOp *op)
{
}
static void
gsk_gpu_blend_op_print (GskGpuOp *op,
GskGpuFrame *frame,
GString *string,
guint indent)
{
GskGpuBlendOp *self = (GskGpuBlendOp *) op;
gsk_gpu_print_op (string, indent, "blend");
switch (self->blend)
{
case GSK_GPU_BLEND_OVER:
gsk_gpu_print_string (string, "over");
break;
case GSK_GPU_BLEND_ADD:
gsk_gpu_print_string (string, "add");
break;
default:
g_assert_not_reached ();
break;
}
gsk_gpu_print_newline (string);
}
#ifdef GDK_RENDERING_VULKAN
static GskGpuOp *
gsk_gpu_blend_op_vk_command (GskGpuOp *op,
GskGpuFrame *frame,
GskVulkanCommandState *state)
{
GskGpuBlendOp *self = (GskGpuBlendOp *) op;
state->blend = self->blend;
return op->next;
}
#endif
static GskGpuOp *
gsk_gpu_blend_op_gl_command (GskGpuOp *op,
GskGpuFrame *frame,
GskGLCommandState *state)
{
GskGpuBlendOp *self = (GskGpuBlendOp *) op;
switch (self->blend)
{
case GSK_GPU_BLEND_OVER:
glBlendFunc (GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
break;
case GSK_GPU_BLEND_ADD:
glBlendFunc (GL_ONE, GL_ONE);
break;
default:
g_assert_not_reached ();
break;
}
return op->next;
}
static const GskGpuOpClass GSK_GPU_BLEND_OP_CLASS = {
GSK_GPU_OP_SIZE (GskGpuBlendOp),
GSK_GPU_STAGE_COMMAND,
gsk_gpu_blend_op_finish,
gsk_gpu_blend_op_print,
#ifdef GDK_RENDERING_VULKAN
gsk_gpu_blend_op_vk_command,
#endif
gsk_gpu_blend_op_gl_command
};
void
gsk_gpu_blend_op (GskGpuFrame *frame,
GskGpuBlend blend)
{
GskGpuBlendOp *self;
self = (GskGpuBlendOp *) gsk_gpu_op_alloc (frame, &GSK_GPU_BLEND_OP_CLASS);
self->blend = blend;
}

12
gsk/gpu/gskgpublendopprivate.h Normal file
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@ -0,0 +1,12 @@
#pragma once
#include "gskgputypesprivate.h"
G_BEGIN_DECLS
void gsk_gpu_blend_op (GskGpuFrame *frame,
GskGpuBlend blend);
G_END_DECLS

25
gsk/gpu/gskgpunodeprocessor.c
View File

@ -4,6 +4,7 @@
#include "gskgpuborderopprivate.h"
#include "gskgpuboxshadowopprivate.h"
#include "gskgpublendopprivate.h"
#include "gskgpublitopprivate.h"
#include "gskgpubluropprivate.h"
#include "gskgpuclearopprivate.h"
@ -89,6 +90,7 @@ typedef enum {
GSK_GPU_GLOBAL_SCALE = (1 << 1),
GSK_GPU_GLOBAL_CLIP = (1 << 2),
GSK_GPU_GLOBAL_SCISSOR = (1 << 3),
GSK_GPU_GLOBAL_BLEND = (1 << 4),
} GskGpuGlobals;
struct _GskGpuNodeProcessor
@ -96,6 +98,7 @@ struct _GskGpuNodeProcessor
GskGpuFrame *frame;
GskGpuDescriptors *desc;
cairo_rectangle_int_t scissor;
GskGpuBlend blend;
graphene_point_t offset;
graphene_matrix_t projection;
graphene_vec2_t scale;
@ -154,6 +157,7 @@ gsk_gpu_node_processor_init (GskGpuNodeProcessor *self,
self->desc = NULL;
self->scissor = *clip;
self->blend = GSK_GPU_BLEND_OVER;
gsk_gpu_clip_init_empty (&self->clip, &GRAPHENE_RECT_INIT (0, 0, viewport->size.width, viewport->size.height));
self->modelview = NULL;
@ -163,7 +167,7 @@ gsk_gpu_node_processor_init (GskGpuNodeProcessor *self,
self->offset = GRAPHENE_POINT_INIT (-viewport->origin.x,
-viewport->origin.y);
self->opacity = 1.0;
self->pending_globals = GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR;
self->pending_globals = GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND;
}
static void
@ -195,6 +199,13 @@ gsk_gpu_node_processor_emit_scissor_op (GskGpuNodeProcessor *self)
self->pending_globals &= ~GSK_GPU_GLOBAL_SCISSOR;
}
static void
gsk_gpu_node_processor_emit_blend_op (GskGpuNodeProcessor *self)
{
gsk_gpu_blend_op (self->frame, self->blend);
self->pending_globals &= ~GSK_GPU_GLOBAL_BLEND;
}
static void
gsk_gpu_node_processor_sync_globals (GskGpuNodeProcessor *self,
GskGpuGlobals ignored)
@ -207,6 +218,8 @@ gsk_gpu_node_processor_sync_globals (GskGpuNodeProcessor *self,
gsk_gpu_node_processor_emit_globals_op (self);
if (required & GSK_GPU_GLOBAL_SCISSOR)
gsk_gpu_node_processor_emit_scissor_op (self);
if (required & GSK_GPU_GLOBAL_BLEND)
gsk_gpu_node_processor_emit_blend_op (self);
}
static guint32
@ -3075,7 +3088,7 @@ static const struct
NULL,
},
[GSK_TRANSFORM_NODE] = {
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR,
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND,
GSK_GPU_HANDLE_OPACITY,
gsk_gpu_node_processor_add_transform_node,
gsk_gpu_node_processor_create_transform_pattern,
@ -3099,13 +3112,13 @@ static const struct
gsk_gpu_node_processor_create_repeat_pattern
},
[GSK_CLIP_NODE] = {
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR,
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND,
GSK_GPU_HANDLE_OPACITY,
gsk_gpu_node_processor_add_clip_node,
gsk_gpu_node_processor_create_clip_pattern,
},
[GSK_ROUNDED_CLIP_NODE] = {
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR,
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND,
GSK_GPU_HANDLE_OPACITY,
gsk_gpu_node_processor_add_rounded_clip_node,
NULL,
@ -3141,7 +3154,7 @@ static const struct
NULL,
},
[GSK_DEBUG_NODE] = {
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR,
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND,
GSK_GPU_HANDLE_OPACITY,
gsk_gpu_node_processor_add_debug_node,
gsk_gpu_node_processor_create_debug_pattern,
@ -3177,7 +3190,7 @@ static const struct
NULL,
},
[GSK_SUBSURFACE_NODE] = {
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR,
GSK_GPU_GLOBAL_MATRIX | GSK_GPU_GLOBAL_SCALE | GSK_GPU_GLOBAL_CLIP | GSK_GPU_GLOBAL_SCISSOR | GSK_GPU_GLOBAL_BLEND,
GSK_GPU_HANDLE_OPACITY,
gsk_gpu_node_processor_add_subsurface_node,
gsk_gpu_node_processor_create_subsurface_pattern,

1
gsk/gpu/gskgpuopprivate.h
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@ -37,6 +37,7 @@ struct _GskVulkanCommandState
VkRenderPass vk_render_pass;
VkFormat vk_format;
VkCommandBuffer vk_command_buffer;
GskGpuBlend blend;
GskVulkanDescriptors *desc;
GskVulkanSemaphores *semaphores;

8
gsk/gpu/gskgpuprint.c
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@ -22,6 +22,14 @@ gsk_gpu_print_op (GString *string,
g_string_append_c (string, ' ');
}
void
gsk_gpu_print_string (GString *string,
const char *s)
{
g_string_append (string, s);
g_string_append_c (string, ' ');
}
void
gsk_gpu_print_rect (GString *string,
const float rect[4])

2
gsk/gpu/gskgpuprintprivate.h
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@ -15,6 +15,8 @@ void gsk_gpu_print_op (GString
void gsk_gpu_print_newline (GString *string);
void gsk_gpu_print_string (GString *string,
const char *s);
void gsk_gpu_print_rect (GString *string,
const float rect[4]);
void gsk_gpu_print_int_rect (GString *string,

1
gsk/gpu/gskgpushaderop.c
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@ -71,6 +71,7 @@ gsk_gpu_shader_op_vk_command_n (GskGpuOp *op,
gsk_vulkan_descriptors_get_pipeline_layout (state->desc),
shader_op_class,
self->clip,
state->blend,
state->vk_format,
state->vk_render_pass));

5
gsk/gpu/gskgputypesprivate.h
View File

@ -47,6 +47,11 @@ typedef enum {
GSK_GPU_SHADER_CLIP_ROUNDED
} GskGpuShaderClip;
typedef enum {
GSK_GPU_BLEND_OVER,
GSK_GPU_BLEND_ADD
} GskGpuBlend;
typedef enum {
GSK_GPU_PATTERN_DONE,
GSK_GPU_PATTERN_COLOR,

52
gsk/gpu/gskvulkandevice.c
View File

@ -77,6 +77,7 @@ struct _PipelineCacheKey
{
const GskGpuShaderOpClass *op_class;
GskGpuShaderClip clip;
GskGpuBlend blend;
VkFormat format;
};
@ -112,7 +113,8 @@ pipeline_cache_key_hash (gconstpointer data)
return GPOINTER_TO_UINT (key->op_class) ^
key->clip ^
(key->format << 2);
(key->blend << 2) ^
(key->format << 4);
}
static gboolean
@ -124,6 +126,7 @@ pipeline_cache_key_equal (gconstpointer a,
return keya->op_class == keyb->op_class &&
keya->clip == keyb->clip &&
keya->blend == keyb->blend &&
keya->format == keyb->format;
}
@ -879,11 +882,41 @@ struct _GskVulkanShaderSpecialization
guint32 n_buffers;
};
static VkPipelineColorBlendAttachmentState blend_attachment_states[2] = {
[GSK_GPU_BLEND_OVER] = {
.blendEnable = VK_TRUE,
.colorBlendOp = VK_BLEND_OP_ADD,
.srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
.alphaBlendOp = VK_BLEND_OP_ADD,
.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
.colorWriteMask = VK_COLOR_COMPONENT_A_BIT
| VK_COLOR_COMPONENT_R_BIT
| VK_COLOR_COMPONENT_G_BIT
| VK_COLOR_COMPONENT_B_BIT
},
[GSK_GPU_BLEND_ADD] = {
.blendEnable = VK_TRUE,
.colorBlendOp = VK_BLEND_OP_ADD,
.srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
.dstColorBlendFactor = VK_BLEND_FACTOR_ONE,
.alphaBlendOp = VK_BLEND_OP_ADD,
.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
.colorWriteMask = VK_COLOR_COMPONENT_A_BIT
| VK_COLOR_COMPONENT_R_BIT
| VK_COLOR_COMPONENT_G_BIT
| VK_COLOR_COMPONENT_B_BIT
},
};
VkPipeline
gsk_vulkan_device_get_vk_pipeline (GskVulkanDevice *self,
GskVulkanPipelineLayout *layout,
const GskGpuShaderOpClass *op_class,
GskGpuShaderClip clip,
GskGpuBlend blend,
VkFormat format,
VkRenderPass render_pass)
{
@ -896,6 +929,7 @@ gsk_vulkan_device_get_vk_pipeline (GskVulkanDevice *self,
cache_key = (PipelineCacheKey) {
.op_class = op_class,
.clip = clip,
.blend = blend,
.format = format,
};
pipeline = g_hash_table_lookup (layout->pipeline_cache, &cache_key);
@ -1035,21 +1069,7 @@ gsk_vulkan_device_get_vk_pipeline (GskVulkanDevice *self,
.pColorBlendState = &(VkPipelineColorBlendStateCreateInfo) {
.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
.attachmentCount = 1,
.pAttachments = (VkPipelineColorBlendAttachmentState []) {
{
.blendEnable = VK_TRUE,
.colorBlendOp = VK_BLEND_OP_ADD,
.srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
.alphaBlendOp = VK_BLEND_OP_ADD,
.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA,
.colorWriteMask = VK_COLOR_COMPONENT_A_BIT
| VK_COLOR_COMPONENT_R_BIT
| VK_COLOR_COMPONENT_G_BIT
| VK_COLOR_COMPONENT_B_BIT
},
}
.pAttachments = &blend_attachment_states[blend],
},
.pDynamicState = &(VkPipelineDynamicStateCreateInfo) {
.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,

1
gsk/gpu/gskvulkandeviceprivate.h
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@ -74,6 +74,7 @@ VkPipeline gsk_vulkan_device_get_vk_pipeline (GskVulk
GskVulkanPipelineLayout*layout,
const GskGpuShaderOpClass *op_class,
GskGpuShaderClip clip,
GskGpuBlend blend,
VkFormat format,
VkRenderPass render_pass);

1
gsk/gpu/gskvulkanframe.c
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@ -316,6 +316,7 @@ gsk_vulkan_frame_submit (GskGpuFrame *frame,
state.vk_command_buffer = self->vk_command_buffer;
state.vk_render_pass = VK_NULL_HANDLE;
state.vk_format = VK_FORMAT_UNDEFINED;
state.blend = GSK_GPU_BLEND_OVER; /* should we have a BLEND_NONE? */
state.desc = GSK_VULKAN_DESCRIPTORS (gsk_descriptors_get (&self->descriptors, 0));
state.semaphores = &semaphores;

1
gsk/meson.build
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@ -72,6 +72,7 @@ gsk_private_sources = files([
'gpu/gskgldescriptors.c',
'gpu/gskglframe.c',
'gpu/gskglimage.c',
'gpu/gskgpublendop.c',
'gpu/gskgpublitop.c',
'gpu/gskgpublurop.c',
'gpu/gskgpuborderop.c',