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Allow rendering to integer textures.

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This commit is contained in:
Alex Szpakowski
2021-08-12 17:43:33 -03:00
parent 48b3a4e860
commit cffd485976
9 changed files with 90 additions and 66 deletions
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src/modules/graphics/opengl/Graphics.cpp
+36 -12
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@@ -835,7 +835,7 @@ void Graphics::endPass()
}
}
void Graphics::clear(OptionalColorf c, OptionalInt stencil, OptionalDouble depth)
void Graphics::clear(OptionalColorD c, OptionalInt stencil, OptionalDouble depth)
{
if (c.hasValue || stencil.hasValue || depth.hasValue)
flushBatchedDraws();
@@ -844,8 +844,9 @@ void Graphics::clear(OptionalColorf c, OptionalInt stencil, OptionalDouble depth
if (c.hasValue)
{
gammaCorrectColor(c.value);
glClearColor(c.value.r, c.value.g, c.value.b, c.value.a);
Colorf cf((float)c.value.r, (float)c.value.g, (float)c.value.b, (float)c.value.b);
gammaCorrectColor(cf);
glClearColor(cf.r, cf.g, cf.b, cf.a);
flags |= GL_COLOR_BUFFER_BIT;
}
@@ -881,17 +882,19 @@ void Graphics::clear(OptionalColorf c, OptionalInt stencil, OptionalDouble depth
}
}
void Graphics::clear(const std::vector<OptionalColorf> &colors, OptionalInt stencil, OptionalDouble depth)
void Graphics::clear(const std::vector<OptionalColorD> &colors, OptionalInt stencil, OptionalDouble depth)
{
if (colors.size() == 0 && !stencil.hasValue && !depth.hasValue)
return;
int ncolorRTs = (int) states.back().renderTargets.colors.size();
const auto &rts = states.back().renderTargets.colors;
int ncolorRTs = (int) rts.size();
int ncolors = (int) colors.size();
if (ncolors <= 1 && ncolorRTs <= 1)
if (ncolors <= 1 && (ncolorRTs == 0 || (ncolorRTs == 1 && rts[0].texture != nullptr && !isPixelFormatInteger(rts[0].texture->getPixelFormat()))))
{
clear(ncolors > 0 ? colors[0] : OptionalColorf(), stencil, depth);
clear(ncolors > 0 ? colors[0] : OptionalColorD(), stencil, depth);
return;
}
@@ -905,18 +908,39 @@ void Graphics::clear(const std::vector<OptionalColorf> &colors, OptionalInt sten
if (!colors[i].hasValue)
continue;
Colorf c = colors[i].value;
gammaCorrectColor(c);
PixelFormatType datatype = PIXELFORMATTYPE_UNORM;
if (rts[i].texture != nullptr)
datatype = getPixelFormatInfo(rts[i].texture->getPixelFormat()).dataType;
ColorD c = colors[i].value;
if (GLAD_ES_VERSION_3_0 || GLAD_VERSION_3_0)
{
const GLfloat carray[] = {c.r, c.g, c.b, c.a};
glClearBufferfv(GL_COLOR, i, carray);
if (datatype == PIXELFORMATTYPE_SINT)
{
const GLint carray[] = {(GLint)c.r, (GLint)c.g, (GLint)c.b, (GLint)c.a};
glClearBufferiv(GL_COLOR, i, carray);
}
else if (datatype == PIXELFORMATTYPE_UINT)
{
const GLuint carray[] = {(GLuint)c.r, (GLuint)c.g, (GLuint)c.b, (GLuint)c.a};
glClearBufferuiv(GL_COLOR, i, carray);
}
else
{
Colorf cf((float)c.r, (float)c.g, (float)c.b, (float)c.a);
gammaCorrectColor(cf);
const GLfloat carray[] = {cf.r, cf.g, cf.b, cf.a};
glClearBufferfv(GL_COLOR, i, carray);
}
}
else
{
Colorf cf((float)c.r, (float)c.g, (float)c.b, (float)c.a);
gammaCorrectColor(cf);
glDrawBuffer(GL_COLOR_ATTACHMENT0 + i);
glClearColor(c.r, c.g, c.b, c.a);
glClearColor(cf.r, cf.g, cf.b, cf.a);
glClear(GL_COLOR_BUFFER_BIT);
drawbuffersmodified = true;