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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#define VECS_PER_SPECIFIC_BRUSH 1
#include shared,prim_shared,brush,yuv
#ifdef WR_FEATURE_ALPHA_PASS
varying vec2 vLocalPos;
#endif
flat varying vec3 vYuvLayers;
varying vec2 vUv_Y;
flat varying vec4 vUvBounds_Y;
varying vec2 vUv_U;
flat varying vec4 vUvBounds_U;
varying vec2 vUv_V;
flat varying vec4 vUvBounds_V;
flat varying float vCoefficient;
flat varying mat3 vYuvColorMatrix;
flat varying vec3 vYuvOffsetVector;
flat varying int vFormat;
#ifdef SWGL
flat varying int vYuvColorSpace;
flat varying int vRescaleFactor;
#endif
#ifdef WR_VERTEX_SHADER
struct YuvPrimitive {
float coefficient;
int color_space;
int yuv_format;
};
YuvPrimitive fetch_yuv_primitive(int address) {
vec4 data = fetch_from_gpu_cache_1(address);
return YuvPrimitive(data.x, int(data.y), int(data.z));
}
void brush_vs(
VertexInfo vi,
int prim_address,
RectWithSize local_rect,
RectWithSize segment_rect,
ivec4 prim_user_data,
int specific_resource_address,
mat4 transform,
PictureTask pic_task,
int brush_flags,
vec4 unused
) {
vec2 f = (vi.local_pos - local_rect.p0) / local_rect.size;
YuvPrimitive prim = fetch_yuv_primitive(prim_address);
vCoefficient = prim.coefficient;
vYuvColorMatrix = get_yuv_color_matrix(prim.color_space);
vYuvOffsetVector = get_yuv_offset_vector(prim.color_space);
vFormat = prim.yuv_format;
#ifdef SWGL
// swgl_commitTextureLinearYUV needs to know the color space specifier and
// also needs to know how many bits of scaling are required to normalize
// HDR textures.
vYuvColorSpace = prim.color_space;
vRescaleFactor = int(log2(prim.coefficient));
#endif
#ifdef WR_FEATURE_ALPHA_PASS
vLocalPos = vi.local_pos;
#endif
if (vFormat == YUV_FORMAT_PLANAR) {
ImageResource res_y = fetch_image_resource(prim_user_data.x);
ImageResource res_u = fetch_image_resource(prim_user_data.y);
ImageResource res_v = fetch_image_resource(prim_user_data.z);
write_uv_rect(res_y.uv_rect.p0, res_y.uv_rect.p1, f, TEX_SIZE(sColor0), vUv_Y, vUvBounds_Y);
write_uv_rect(res_u.uv_rect.p0, res_u.uv_rect.p1, f, TEX_SIZE(sColor1), vUv_U, vUvBounds_U);
write_uv_rect(res_v.uv_rect.p0, res_v.uv_rect.p1, f, TEX_SIZE(sColor2), vUv_V, vUvBounds_V);
vYuvLayers = vec3(res_y.layer, res_u.layer, res_v.layer);
} else if (vFormat == YUV_FORMAT_NV12) {
ImageResource res_y = fetch_image_resource(prim_user_data.x);
ImageResource res_u = fetch_image_resource(prim_user_data.y);
write_uv_rect(res_y.uv_rect.p0, res_y.uv_rect.p1, f, TEX_SIZE(sColor0), vUv_Y, vUvBounds_Y);
write_uv_rect(res_u.uv_rect.p0, res_u.uv_rect.p1, f, TEX_SIZE(sColor1), vUv_U, vUvBounds_U);
vYuvLayers = vec3(res_y.layer, res_u.layer, 0.0);
} else if (vFormat == YUV_FORMAT_INTERLEAVED) {
ImageResource res_y = fetch_image_resource(prim_user_data.x);
write_uv_rect(res_y.uv_rect.p0, res_y.uv_rect.p1, f, TEX_SIZE(sColor0), vUv_Y, vUvBounds_Y);
vYuvLayers = vec3(res_y.layer, 0.0, 0.0);
}
}
#endif
#ifdef WR_FRAGMENT_SHADER
Fragment brush_fs() {
vec4 color = sample_yuv(
vFormat,
vYuvColorMatrix,
vYuvOffsetVector,
vCoefficient,
vYuvLayers,
vUv_Y,
vUv_U,
vUv_V,
vUvBounds_Y,
vUvBounds_U,
vUvBounds_V
);
#ifdef WR_FEATURE_ALPHA_PASS
color *= init_transform_fs(vLocalPos);
#endif
return Fragment(color);
}
#ifdef SWGL
void swgl_drawSpanRGBA8() {
if (vFormat == YUV_FORMAT_PLANAR) {
if (!swgl_isTextureLinear(sColor0) || !swgl_isTextureLinear(sColor1) || !swgl_isTextureLinear(sColor2)) {
return;
}
int layer0 = swgl_textureLayerOffset(sColor0, vYuvLayers.x);
vec2 uv0 = swgl_linearQuantize(sColor0, vUv_Y);
vec2 min_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.xy);
vec2 max_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.zw);
vec2 step_uv0 = swgl_linearQuantizeStep(sColor0, swgl_interpStep(vUv_Y));
int layer1 = swgl_textureLayerOffset(sColor1, vYuvLayers.y);
vec2 uv1 = swgl_linearQuantize(sColor1, vUv_U);
vec2 min_uv1 = swgl_linearQuantize(sColor1, vUvBounds_U.xy);
vec2 max_uv1 = swgl_linearQuantize(sColor1, vUvBounds_U.zw);
vec2 step_uv1 = swgl_linearQuantizeStep(sColor1, swgl_interpStep(vUv_U));
int layer2 = swgl_textureLayerOffset(sColor2, vYuvLayers.z);
vec2 uv2 = swgl_linearQuantize(sColor2, vUv_V);
vec2 min_uv2 = swgl_linearQuantize(sColor2, vUvBounds_V.xy);
vec2 max_uv2 = swgl_linearQuantize(sColor2, vUvBounds_V.zw);
vec2 step_uv2 = swgl_linearQuantizeStep(sColor2, swgl_interpStep(vUv_V));
#ifdef WR_FEATURE_ALPHA_PASS
if (has_valid_transform_bounds()) {
while (swgl_SpanLength > 0) {
float alpha = init_transform_fs(vLocalPos);
vLocalPos += swgl_interpStep(vLocalPos);
swgl_commitTextureLinearColorYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
sColor1, clamp(uv1, min_uv1, max_uv1), layer1,
sColor2, clamp(uv2, min_uv2, max_uv2), layer2,
vYuvColorSpace, vRescaleFactor, alpha);
uv0 += step_uv0;
uv1 += step_uv1;
uv2 += step_uv2;
}
return;
}
#endif
while (swgl_SpanLength > 0) {
swgl_commitTextureLinearYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
sColor1, clamp(uv1, min_uv1, max_uv1), layer1,
sColor2, clamp(uv2, min_uv2, max_uv2), layer2,
vYuvColorSpace, vRescaleFactor);
uv0 += step_uv0;
uv1 += step_uv1;
uv2 += step_uv2;
}
} else if (vFormat == YUV_FORMAT_NV12) {
if (!swgl_isTextureLinear(sColor0) || !swgl_isTextureLinear(sColor1)) {
return;
}
int layer0 = swgl_textureLayerOffset(sColor0, vYuvLayers.x);
vec2 uv0 = swgl_linearQuantize(sColor0, vUv_Y);
vec2 min_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.xy);
vec2 max_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.zw);
vec2 step_uv0 = swgl_linearQuantizeStep(sColor0, swgl_interpStep(vUv_Y));
int layer1 = swgl_textureLayerOffset(sColor1, vYuvLayers.y);
vec2 uv1 = swgl_linearQuantize(sColor1, vUv_U);
vec2 min_uv1 = swgl_linearQuantize(sColor1, vUvBounds_U.xy);
vec2 max_uv1 = swgl_linearQuantize(sColor1, vUvBounds_U.zw);
vec2 step_uv1 = swgl_linearQuantizeStep(sColor1, swgl_interpStep(vUv_U));
#ifdef WR_FEATURE_ALPHA_PASS
if (has_valid_transform_bounds()) {
while (swgl_SpanLength > 0) {
float alpha = init_transform_fs(vLocalPos);
vLocalPos += swgl_interpStep(vLocalPos);
swgl_commitTextureLinearColorYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
sColor1, clamp(uv1, min_uv1, max_uv1), layer1,
vYuvColorSpace, vRescaleFactor, alpha);
uv0 += step_uv0;
uv1 += step_uv1;
}
return;
}
#endif
while (swgl_SpanLength > 0) {
swgl_commitTextureLinearYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
sColor1, clamp(uv1, min_uv1, max_uv1), layer1,
vYuvColorSpace, vRescaleFactor);
uv0 += step_uv0;
uv1 += step_uv1;
}
} else if (vFormat == YUV_FORMAT_INTERLEAVED) {
if (!swgl_isTextureLinear(sColor0)) {
return;
}
int layer0 = swgl_textureLayerOffset(sColor0, vYuvLayers.x);
vec2 uv0 = swgl_linearQuantize(sColor0, vUv_Y);
vec2 min_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.xy);
vec2 max_uv0 = swgl_linearQuantize(sColor0, vUvBounds_Y.zw);
vec2 step_uv0 = swgl_linearQuantizeStep(sColor0, swgl_interpStep(vUv_Y));
#ifdef WR_FEATURE_ALPHA_PASS
if (has_valid_transform_bounds()) {
while (swgl_SpanLength > 0) {
float alpha = init_transform_fs(vLocalPos);
vLocalPos += swgl_interpStep(vLocalPos);
swgl_commitTextureLinearColorYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
vYuvColorSpace, vRescaleFactor, alpha);
uv0 += step_uv0;
}
return;
}
#endif
while (swgl_SpanLength > 0) {
swgl_commitTextureLinearYUV(sColor0, clamp(uv0, min_uv0, max_uv0), layer0,
vYuvColorSpace, vRescaleFactor);
uv0 += step_uv0;
}
}
}
#endif
#endif
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