X-Git-Url: https://git.sesse.net/?p=nageru;a=blobdiff_plain;f=tweaked_inputs.cpp;fp=tweaked_inputs.cpp;h=304c3b43fdad8251197fd9fb0d07a9d948b223dc;hp=0000000000000000000000000000000000000000;hb=142184354968cd1b1918f35772bb6f9f0b1351d6;hpb=72afc695d201f9d2a0dcb316ec62f1610db5fa74

diff --git a/tweaked_inputs.cpp b/tweaked_inputs.cpp
new file mode 100644
index 0000000..304c3b4
--- /dev/null
+++ b/tweaked_inputs.cpp
@@ -0,0 +1,48 @@
+#include <epoxy/gl.h>
+#include <movit/flat_input.h>
+#include <movit/util.h>
+
+#include "tweaked_inputs.h"
+
+sRGBSwitchingFlatInput::~sRGBSwitchingFlatInput()
+{
+	if (sampler_obj != 0) {
+		glDeleteSamplers(1, &sampler_obj);
+	}
+}
+
+void sRGBSwitchingFlatInput::set_gl_state(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num)
+{
+	movit::FlatInput::set_gl_state(glsl_program_num, prefix, sampler_num);
+	texture_unit = *sampler_num - 1;
+
+	if (sampler_obj == 0) {
+		glGenSamplers(1, &sampler_obj);
+		check_error();
+		glSamplerParameteri(sampler_obj, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
+		check_error();
+		glSamplerParameteri(sampler_obj, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+		check_error();
+		glSamplerParameteri(sampler_obj, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+		check_error()
+		// This needs to be done on a sampler and not a texture parameter,
+		// because the texture could be used from multiple different
+		// contexts at the same time. This flag is ignored for non-sRGB-uploaded
+		// textures, so we can set it without checking can_output_linear_gamma().
+		if (output_linear_gamma) {
+			glSamplerParameteri(sampler_obj, GL_TEXTURE_SRGB_DECODE_EXT, GL_DECODE_EXT);
+		} else {
+			glSamplerParameteri(sampler_obj, GL_TEXTURE_SRGB_DECODE_EXT, GL_SKIP_DECODE_EXT);
+		}
+		check_error();
+	}
+
+	glBindSampler(texture_unit, sampler_obj);
+	check_error();
+}
+
+void sRGBSwitchingFlatInput::clear_gl_state()
+{
+	glBindSampler(texture_unit, 0);
+	check_error();
+}