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Added GLFW_DONT_CARE.

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This changes the behavior of framebuffer hints set to zero.  Before,
zero meant that any value was acceptable.  This changes zero to be an
explicit preference and adds GLFW_DONT_CARE to mean that any value is
equally acceptable.

Fixes #70.
This commit is contained in:
Camilla Berglund
2014-04-08 18:57:43 +02:00
parent 25e7ff1196
commit 281013002d
9 changed files with 131 additions and 91 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/context.c
+17 -17
View File
@@ -235,8 +235,11 @@ const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
if (desired->stencilBits > 0 && current->stencilBits == 0)
missing++;
if (desired->auxBuffers > 0 && current->auxBuffers < desired->auxBuffers)
if (desired->auxBuffers > 0 &&
current->auxBuffers < desired->auxBuffers)
{
missing += desired->auxBuffers - current->auxBuffers;
}
if (desired->samples > 0 && current->samples == 0)
{
@@ -254,19 +257,19 @@ const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
{
colorDiff = 0;
if (desired->redBits > 0)
if (desired->redBits != GLFW_DONT_CARE)
{
colorDiff += (desired->redBits - current->redBits) *
(desired->redBits - current->redBits);
}
if (desired->greenBits > 0)
if (desired->greenBits != GLFW_DONT_CARE)
{
colorDiff += (desired->greenBits - current->greenBits) *
(desired->greenBits - current->greenBits);
}
if (desired->blueBits > 0)
if (desired->blueBits != GLFW_DONT_CARE)
{
colorDiff += (desired->blueBits - current->blueBits) *
(desired->blueBits - current->blueBits);
@@ -277,59 +280,56 @@ const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
{
extraDiff = 0;
if (desired->alphaBits > 0)
if (desired->alphaBits != GLFW_DONT_CARE)
{
extraDiff += (desired->alphaBits - current->alphaBits) *
(desired->alphaBits - current->alphaBits);
}
if (desired->depthBits > 0)
if (desired->depthBits != GLFW_DONT_CARE)
{
extraDiff += (desired->depthBits - current->depthBits) *
(desired->depthBits - current->depthBits);
}
if (desired->stencilBits > 0)
if (desired->stencilBits != GLFW_DONT_CARE)
{
extraDiff += (desired->stencilBits - current->stencilBits) *
(desired->stencilBits - current->stencilBits);
}
if (desired->accumRedBits > 0)
if (desired->accumRedBits != GLFW_DONT_CARE)
{
extraDiff += (desired->accumRedBits - current->accumRedBits) *
(desired->accumRedBits - current->accumRedBits);
}
if (desired->accumGreenBits > 0)
if (desired->accumGreenBits != GLFW_DONT_CARE)
{
extraDiff += (desired->accumGreenBits - current->accumGreenBits) *
(desired->accumGreenBits - current->accumGreenBits);
}
if (desired->accumBlueBits > 0)
if (desired->accumBlueBits != GLFW_DONT_CARE)
{
extraDiff += (desired->accumBlueBits - current->accumBlueBits) *
(desired->accumBlueBits - current->accumBlueBits);
}
if (desired->accumAlphaBits > 0)
if (desired->accumAlphaBits != GLFW_DONT_CARE)
{
extraDiff += (desired->accumAlphaBits - current->accumAlphaBits) *
(desired->accumAlphaBits - current->accumAlphaBits);
}
if (desired->samples > 0)
if (desired->samples != GLFW_DONT_CARE)
{
extraDiff += (desired->samples - current->samples) *
(desired->samples - current->samples);
}
if (desired->sRGB)
{
if (!current->sRGB)
extraDiff++;
}
if (desired->sRGB && !current->sRGB)
extraDiff++;
}
// Figure out if the current one is better than the best one found so far