driver working : 22.5.1 : windows 10
driver broken : 23.5.2 : windows 10
Not much else to say other than likely a separate issue is while texel fetching data with a standard texture bind for the texture buffer doesn't timeout and shows the expected result if you fail to bind a texture to that explicit layout location and do a texelFetch you wont get a timeout but a instant crash if this is the expected new behaviour a error message would be welcome, the previous driver stack would just display nothing if you failed to bind a texture to that slot. Will update if I've missed anything or do more testing.
# VERT_SHADER
layout (std140, binding = 0) buffer BINDLESS_VERTEX_DATA_BUFFERS {
samplerBuffer texture_buffer_handles[];
};
// layout (binding = 0) uniform samplerBuffer texture_buffer;
void main() {
vec3 position = texelFetch(texture_buffer_handles[0], gl_VertexID).xyz;
// vec3 position = texelFetch(texture_buffer, gl_VertexID).xyz; // works if texBuf bound to layout location
gl_Position = vec4(position.xy, 0.0, 1.0);
}
# FRAG_SHADER
layout (location = 0) out vec4 color;
void main() {
color = vec4(1.0, 0.0, 0.0, 1.0);
}
#init
unsigned int bufferID, textureID;
float mesh_data[] = {0.0, 0.5, 0.0, -0.5, -0.5, 0.0, 0.5, -0.5, 0.0};
glCreateBuffers(1, &bufferID);
glCreateTextures(GL_TEXTURE_BUFFER, 1, &textureID);
glTextureBuffer(textureID, GL_RGB32F, bufferID);
glNamedBufferStorage(bufferID, sizeof(mesh_data), mesh_data, GL_DYNAMIC_STORAGE_BIT);
glMakeTextureHandleResidentARB(glGetTextureHandleARB(textureID));
uint64_t buffer_texture_handles_arr[8];
buffer_texture_handles_arr[0] = glGetTextureHandleARB(textureID)
unsigned int handles_bufferID;
glCreateBuffers(1, &handles_bufferID);
glNamedBufferStorage(handles_bufferID, 8 * sizeof(uint64_t), buffer_texture_handles_arr, GL_DYNAMIC_STORAGE_BIT);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, handles_bufferID);
int vertID, fragID, pipelineID;
vertID = glCreateShaderProgramv(GL_VERTEX_SHADER, 1, vert_shader_string);
fragID = glCreateShaderProgramv(GL_FRAGMENT_SHADER, 1, frag_shader_string);
glCreateProgramPipelines(1, &pipelineID);
glUseProgramStages(pipelineID, GL_VERTEX_SHADER_BIT, vertID);
glUseProgramStages(pipelineID, GL_FRAGMENT_SHADER_BIT, fragID);
#loop
glViewport(0, 0, 450, 350);
glBindProgramPipeline(pipelineID);
// glBindTextureUnit(0, textureID); // will work if correct location as mentioned above
glDrawArrays(GL_TRIANGLES, 0, 3); // timeout
